Module-17-New.doc

Module 17, Propeller. 17.1. Fundamentals.

Que Questio stion n Nu Number. er. 1. High High spee peed pro prope pell ller erss are are des designe igned d to to. Option A. A. rotate at at hi high RP RPM. Opti Option on B. oper operat atee at at high high forw forwar ard d spe speed eds. s. Opti Option on C. oper operat atee at at sup super erso soni ni tip tip spe speed eds. s. Corre Corret t Ans Answer wer is. opera operate te at at high high forwa forward rd spe speeds eds.. !"pl !"plan anat atio ion. n. N#$. N#$.

Que Questio stion n Nu Number. er. %. &hen hen in in the the win windmill ill po posit sition ion A'M. Option A. opposes C'M. Opti Optio on B. is not rela relate ted d to C'M. C'M. Option C. assists C'M. Corr Corre ett Ans Answe werr is. is. assi assist stss C'M. C'M. !"planation. !"planation. A'M A'M normall( inreases inreases blade angle but in the the windmill ondition ondition re)erses re)erses and assists C'M. C'M.

Ques Questi tion on Numb Number er.. *. 'he 'he opt optim imum um angl anglee for for a fi" fi"ed ed pit pith h pro prope pell ller er is. is. Option A. A. 1+ de degrees. Option B. % , - degrees. Option C.  , 1/ degrees. Corr Corre ett Answ Answer er is. is. % , - degr degree ees. s. !"plana !"planation. tion. 0epperso 0epperson n AP Powerp Powerplant lant Page Page 1%,- Refers. Refers.

Que Questio stion n Nu Number. er.

-.

A lef left ha handed ded prop propeelle ller is is on one tha that.

Opti Option on A. A. rota rotate tess lo lo2w 2wis isee when when )ie )iewe wed d from from the the rea rear. r. Opti Option on B. B. rota rotate tess lo lo2w 2wis isee when when )ie )iewe wed d from from the the fro front nt.. Optio Option n C. is fitt fitted ed to an engin enginee on on the the left left side side of the airra airraft. ft. Corret Corret Answer Answer is. rotates rotates lo2wis lo2wisee when when )iewe )iewed d from from the the front. front. !"plana !"planation. tion. $eft hand hand prope propeller ller rotates rotates anti,lo anti,lo2wi 2wise se when )iewed )iewed from the rear. rear.

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Que Questio stion n Number. er. +. 5or 5orees atin ting g on a prope ropell ller er are. re. Opti Option on A. ent entri rifu fuga gal6 l6 twis twisti ting ng66 and and bend bendin ing. g. Opti Option on B. B. tor7 tor7ue ue66 thru thrust st and and ent entri rifu fuga gal. l. Opti Option on C. tors torsio ion6 n6 tens tensio ion n and and thru thrust st.. Corre Corret t Ans Answer wer is. is. entr entrifu ifugal gal66 twisti twisting ng66 and bend bending ing.. !"plana !"planation. tion. 0epperso 0epperson n Powerplan Powerplantt Page 1%,+ to 1%,8 1%,8 refers. refers.

Question Nu Number. . 'he bl blade an angle at th the ro root is. Option A. less th than th the ti tip. Opti Optio on B. B. sam same fro from m tip tip to to roo root. Opti Optio on C. grea reater ter th than the tip tip. Corr Corre ett Ans Answe werr is. is. grea greate terr than than the the tip tip.. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and and Controls Controls Page 1* Refers.

Ques Questi tion on Numb Number er.. 8. &hat &hat for foree on on a prop propel elle lerr bla blade de turn turnss the the blad blades es to a fin finee pit pith h9. 9. Option A. A'M. Option B. 'or7ue. Option C. C'M. Corr Correet Answer is. is. C'M. C'M. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and and Controls Controls Page 1+ refers.

Opti Option on A. A. rota rotate tess lo lo2w 2wis isee when when )ie )iewe wed d from from the the rea rear. r. Opti Option on B. B. rota rotate tess lo lo2w 2wis isee when when )ie )iewe wed d from from the the fro front nt.. Optio Option n C. is fitt fitted ed to an engin enginee on on the the left left side side of the airra airraft. ft. Corret Corret Answer Answer is. rotates rotates lo2wis lo2wisee when when )iewe )iewed d from from the the front. front. !"plana !"planation. tion. $eft hand hand prope propeller ller rotates rotates anti,lo anti,lo2wi 2wise se when )iewed )iewed from the rear. rear.

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Que Questio stion n Number. er. +. 5or 5orees atin ting g on a prope ropell ller er are. re. Opti Option on A. ent entri rifu fuga gal6 l6 twis twisti ting ng66 and and bend bendin ing. g. Opti Option on B. B. tor7 tor7ue ue66 thru thrust st and and ent entri rifu fuga gal. l. Opti Option on C. tors torsio ion6 n6 tens tensio ion n and and thru thrust st.. Corre Corret t Ans Answer wer is. is. entr entrifu ifugal gal66 twisti twisting ng66 and bend bending ing.. !"plana !"planation. tion. 0epperso 0epperson n Powerplan Powerplantt Page 1%,+ to 1%,8 1%,8 refers. refers.

Question Nu Number. . 'he bl blade an angle at th the ro root is. Option A. less th than th the ti tip. Opti Optio on B. B. sam same fro from m tip tip to to roo root. Opti Optio on C. grea reater ter th than the tip tip. Corr Corre ett Ans Answe werr is. is. grea greate terr than than the the tip tip.. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and and Controls Controls Page 1* Refers.

Ques Questi tion on Numb Number er.. 8. &hat &hat for foree on on a prop propel elle lerr bla blade de turn turnss the the blad blades es to a fin finee pit pith h9. 9. Option A. A'M. Option B. 'or7ue. Option C. C'M. Corr Correet Answer is. is. C'M. C'M. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and and Controls Controls Page 1+ refers.

Que Questio stion n Number. er. :. 'he 'he purpo rpose of prop ropelle ller twis wist is. is. Opti Option on A. oar oarse sen n the the blad bladee ang angle le at the the roo root. t. Opti Option on B. B. to mai maint ntai ain n Blad Bladee Ang Angle le alo along ng the the bla blade de.. Optio Option n C. to main maintai tain n Ang Angle le of Atta Atta2 2 at the the same same )alue )alue alon along g the the blade blade.. Corret Corret Answ Answer er is. to maintai maintain n Angle Angle of Atta2 Atta2 at at the same same )alue )alue along along the the blade. blade. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and and Controls Controls Page 1* Refers.

Que Questio stion n Nu Number. er. ;. 'he 'he fo fores res ati ating ng on a pro prop pelle ller bla blade de are. re. Opti Option on A. bend bendin ing6 g6 twis twisti ting ng and and en entr trif ifug ugal al.. Opti Option on B. thru thrust st66 aer aerod od(n (nam ami i and and tens tensio ion. n. Option C. C. thrust an and to tor7ue. Corre Corret t Ans Answer wer is. is. bendi bending ng66 twistin twisting g and en entri trifug fugal. al. !"plana !"planation. tion. Refer Refer 0epperso 0epperson n Powerpla Powerplant nt Page 1%, 1%, + to 8.

Que Questio stion n Number. er. 1/. Blad Bladee angle at the the roo root is. is. Option A. low. Option B. high. Opti Optio on C. maste asterr blade lade ang angle. le. Corr Correet Answer is. is. high igh. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and Control Pages ++,+: Refer.

Ques Questi tion on Numb Number er.. 11. Blad Bladee ang angle le is ta2e ta2en n fro from m the the hor hord d and and.. Option A. A. propeller sh shaft. Option B. B. relati)e ai airflow. Option C. C. plane of of ro rotation. Corr Corre ett Ans Answe werr is. is. plan planee of rota rotati tion on.. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and and Control Control Page1*% refer.

Ques Questi tion on Numb Number er.. 1%. 1%. &hat &hat for fores es at at on on a pro prope pell ller er blad blade9 e9.. Option A. A. 'hrust an and to tor7ue. Opti Option on B. Bend Bendin ing6 g6 thru thrust st66 tor7 tor7ue ue.. Opti Optio on C. C. Ben Bending ing6 C'M C'M and A' A'M. Corre Corret t Answ Answer er is. is. Bendin Bending6 g6 C'M C'M and and A'M. !"planation. !"planation. Refer 0epperson 0epperson Airraft Airraft Propellers Propellers and Controls Controls Page 1-,1+ Note 'hrust 'hrust and 'or7ue 'or7ue are both.

Question Nu Number. 1*. C'M wi will. Opti Option on A. tr( tr( to bend bend the the blad bladee awa( awa( from from the the engi engine ne.. Opti Option on B. turn turn the the bla blade de abou aboutt the the late latera rall a"i a"is. s. Opti Option on C. C. aus ausee the the tips tips to to rota rotate te at at supe supers rson oni i spe speed eds. s. Corre Corret t Ans Answer wer is. is. turn turn the the blade blade abo about ut the the later lateral al a"is. a"is. !"planation. !"planation. 0epperson Airraft Airraft Propellers Propellers and Controls page Page 1+ 1+ refers. refers.

Ques Questi tion on Numb Number er.. 1-. 1-. 5rom 5rom re)e re)ers rsee pit pith6 h6 to retu return rn to norm normal al pit pith h it. it. Opti Option on A. pass passes es thro throug ugh h oar oarse se then then fine fine.. Opti Optio on B. B. passe sses th throu rough o oarse. rse. Opti Optio on C. C. passe sses th throu rough fin fine. Corr Corre ett Ans Answe werr is. pass passes es thr throu ough gh fin fine. e. !"pl !"plan anat atio ion. n. N#$. N#$.

Questi Question on Numb Number er.. 1+. 1+. &hen &hen in in re)e re)erse rse pith6 pith6 C'M will will ten tend d to to mo)e mo)e the propel propeller ler blade bladess towa towards rds.. Option A. a po positi)e pi pith. Opti Option on B. a pos posit itio ion n dep depen endi ding ng on rpm rpm. Option C. C. a ne negati)e pi pith. Corr Corre ett Ans Answe werr is. is. a pos posit iti) i)ee pit pith h.. !"plana !"planation. tion. C'M alwa(s alwa(s rotates rotates towards towards the the plane of rotatio rotation. n.

Question Number. 1. #f the blade angle is inreased. Option A. the pith beomes finer. Option B. the pith beomes oarser. Option C. lateral stabilit( dereases. Corret Answer is. the pith beomes oarser. !"planation. Pith is an alternati)e name for blade angle.

Question Number. 18. As a propeller blade mo)es through the air6 fores are produed6 whih are 2nown as. Option A. lift and tor7ue. Option B. lift and drag. Option C. thrust and tor7ue. Corret Answer is. thrust and tor7ue. !"planation. 0epperson A  P Powerplant Page 1%,.

Question Number. 1:. A rotating propeller imparts rearwards motion to a. Option A. small mass of air at high )eloit(. Option B. large mass of air at low )eloit(. Option C. small mass of air at low )eloit(. Corret Answer is. large mass of air at low )eloit(. !"planation. . Option C. the ratio of the useful wor2 done b( the propeller to wor2 done b( the engine on the propeller. Corret Answer is. the ratio of the useful wor2 done b( the propeller to wor2 done b( the engine on the propeller.

!"planation. nder normal operation the point of ma"imum stress on a propeller blade is at the. Option A. root. Corret Answer is. root. !"planation. 0epperson AP Powerplant 5ig 1%,: refers Question Number. %8 . Propeller blade angle. Option A. is onstant along the blade length. Option B. dereases from root to tip. Option C. inreases from root to tip. Corret Answer is. dereases from root to tip. !"planation. 0epperson Airraft Propellers and Controls 5ig 11,** refers.

Question Number. %:. Coarse pith is used for. Option A. ta2e off and limb. Option B. ma"imum eonomial ruise in le)el flight. Option C. landing and power he2s. Corret Answer is. ma"imum eonomial ruise in le)el flight. !"planation. 0epperson Airraft Propellers and Controls page */ refers.

Question Number.

%;.

!ffeti)e pith is.

Option A. distane mo)ed in one re)olution. Option B. geometri pith plus slip. Option C. pith measured at the master station. Corret Answer is. distane mo)ed in one re)olution. !"planation. !ffeti)e pith is geometri pith minus slip.

Question Number. */. A windmilling Propeller has. Option A. a small positi)e blade angle. Option B. a small positi)e angle of atta2. Option C. a small negati)e angle of atta2. Corret Answer is. a small negati)e angle of atta2. !"planation. &indmilling ours with a small negati)e AoA and a small positi)e blade angle.

Question Number. *1. &indmilling auses. Option A. propeller underspeeding. Option B. ma"imum propeller drag. Option C. Centrifugal 'wisting Moment. Corret Answer is. ma"imum propeller drag. !"planation. N#$.

Question Number. *%. 'or7ue ats. Option A. in the same diretion as the plane of rotation. Option B. at right angles to the plane of rotation. Option C. in opposition to the diretion of rotation. Corret Answer is. in opposition to the diretion of rotation. !"planation. 0epperson Airraft Propellers and Controls Page 1+ refers.

Question Number. **. 'he purpose of blade twist is to. Option A. redue angle of atta2 at the blade root. Option B. to ensure that tip speed does not go faster than Mah 1. Option C. to e)en out thrust distribution aross the propeller. Corret Answer is. to e)en out thrust distribution aross the propeller. !"planation. 0epperson Airraft Propellers and Controls Page 1- refers.

Question Number. *-. 'hrust is greatest. Option A. at 8/ to :/@ of propeller length. Option B. in the first +/@. Option C. the same all along the length. Corret Answer is. at 8/ to :/@ of propeller length. !"planation. Be(ond this point the blade hord is redued to lessen tip thrust.

Question Number. *+. C'M hanges the pith of a blade. Option A. about its twisting a"is. Option B. bending forward. Option C. towards the feather plane. Corret Answer is. about its twisting a"is. !"planation. C'M redues pith towards the plane of rotation6 about the twisting a"is.

Question Number. *. 'he )eloit( of the slipstream behind the airraft in relation to the ambient air is. Option A. less. Option B. greater. Option C. e7ual. Corret Answer is. greater. !"planation. #f there was not a differene then no thrust would be produed. '  mass  out,inD.

Question Number. *8. High speed aerofoils are emplo(ed at. Option A. the master station. Option B. the tips. Option C. the root. Corret Answer is. the tips. !"planation. On heliopters the( are alled B!RP tips.

Question Number. *:. A right hand propeller. Option A. rotates lo2wise when )iewed from the rear. Option B. is alwa(s fitted to the starboard engine. Option C. rotates lo2wise when )iewed from the front. Corret Answer is. rotates lo2wise when )iewed from the rear. !"planation. $eft or right is determined b( sitting in the o2pit and )iewing the rotation.

Question Number. *;. ?i)en that blade angle is measured from the entre of the hub6 the blade angle at the hub is onsidered to  be. Option A. lowest. Option B. Master =tation )alue. Option C. highest. Corret Answer is. highest. !"planation. Refer to 0eppesen Airraft Propellers and ontrols page 1*.

Question Number. -/. A windmilling propeller will reate. Option A. more drag in feather. Option B. more drag in fine pith. Option C. more drag in oarse pith. Corret Answer is. more drag in fine pith.

!"planation. A windmilling propeller is alwa(s in fine pith.

Question Number. -1. 'he hord line of a propeller is. Option A. a line Eoining the leading and trailing edges. Option B. a line Eoining the tip to the root of the blade. Option C. a line Eoining the tips of the blades. Corret Answer is. a line Eoining the leading and trailing edges. !"planation. N#$.

Question Number. -%. 'he plane of rotation is defined as. Option A. the plane in whih thrust fore ats. Option B. the plane in whih the propeller rotates. Option C. the angle at whih the blade stri2es the airflow. Corret Answer is. the plane in whih the propeller rotates. !"planation. N#$.

Question Number. -*. 'hrust bending fore on a propeller blade. Option A. intensifies the entrifugal fores to some degrees. Option B. an be used in propeller design to redue some operation stress. Option C. tends to bend the propeller blade forward at the tip. Corret Answer is. tends to bend the propeller blade forward at the tip. !"planation. N#$.

Question Number. --. &hat onditions are applied to a propeller blade windmilling9. Option A. Positi)e angle of atta26 thrust negati)e. Option B. Negati)e angle of atta26 thrust positi)e. Option C. Negati)e angle of atta26 thrust negati)e.

Corret Answer is. !"planation. N#$.

Negati)e angle of atta26 thrust negati)e.

Question Number. -+. 'he primar( purpose of propeller is to. Option A. hange engine horsepower to thrust. Option B. pro)ide stati and d(nami stabilit( to airraft. Option C. reate lift on the fi"ed aerofoils of an airraft. Corret Answer is. hange engine horsepower to thrust. !"planation. N#$.

Question Number. -. 'he primar( purpose of a feathering propeller is to. Option A. pre)ent further engine damage when an engine fails in flight. Option B. pre)ent propeller damage when an engine fails in flight. Option C. eliminate the drag reated b( a windmilling propeller when an engine fails in flight. Corret Answer is. eliminate the drag reated b( a windmilling propeller when an engine fails in flight. !"planation. N#$.

17.2. Propeller Construction.

Question Number. 1. A fibreglass omposite blade. Option A. will ne)er be stru2 b( lighting. Option B. does not re7uire lightning stri2e protetion. Option C. re7uires lightning stri2e protetion. Corret Answer is. re7uires lightning stri2e protetion. !"planation. N#$.

Question Number. %. 'he timber most often used toda( for propeller onstrution is. Option A. birh. Option B. sprue. Option C. balsa. Corret Answer is. birh. !"planation. N#$.

Question Number. *. !letroni tor7ue measuring s(stems utilise. Option A. strain gauges in the redution gear. Option B. stress gauges in the redution gear. Option C. pressure transduers in the redution gear. Corret Answer is. strain gauges in the redution gear. !"planation. N#$.

Question Number. -. A on)entional turboprop tor7ue meter uses. Option A. h(drauli oil as the pressure medium. Option B. oiled spring le)ers as the pressure medium. Option C. engine oil as the pressure medium. Corret Answer is. engine oil as the pressure medium. !"planation. Pallett Airraft #nstruments and integrated =(stems page *+8.

Question Number. +. Metal at the tip and along the leading edge of a wooden propeller is. Option A. for balaning. Option B. for protetion. Option C. for Anti,iing. Corret Answer is. for protetion. !"planation. 0epperson Airraft Propellers and Control page 1: refers.

Question Number. . Blade uffs are fitted to the root of the blades. Option A. to inrease the strength of the blade. Option B. to inrease thrust. Option C. to inrease flow of ooling air into the engine naelle. Corret Answer is. to inrease flow of ooling air into the engine naelle. !"planation. Refer 0epperson Powerplant Page 1%, *.

Question Number. 8. $ow tor7ue sensing is used to. Option A. inrease power. Option B. inrease pith. Option C. initiate auto,feather. Corret Answer is. initiate auto,feather. !"planation. Refer 0epperson Airraft Propellers and Controls Page 1*+.

Question Number. :. 'or7ue sensing is used to. Option A. redue drag. Option B. redue drag following engine shutdown. Option C. s(nhronise blade angle. Corret Answer is. redue drag following engine shutdown. !"planation. 0epperson Airraft Propellers and Controls page 1*+ Refers.

Question Number. ;. 'he minimum perentage seating on a propeller rear one should be. Option A. ;/@. Option B. 8/@. Option C. ;+@. Corret Answer is. 8/@.

!"planation.

0epperson Airraft Propellers and Controls Page *1 shows 8/@ Old CA#Ps shows :/@.

Question Number. 1/. 'he propeller is FfeatheredF when the blades are at. Option A. /G to plane of rotation. Option B. %/G to plane of rotation. Option C. ;/G to plane of rotation. Corret Answer is. ;/G to plane of rotation. !"planation. 0epperson Airraft Propellers and Controls page 8+ refers.

Question Number. 11. 'he thrust of a propeller is normall( ta2en b( the. Option A. tor7ue meter. Option B. propeller rear one. Option C. front bearing in the redution gear. Corret Answer is. front bearing in the redution gear. !"planation. 0epperson AP Powerplant Page 1,*/41,*1 refers.

Question Number. 1%. On whih t(pe of turbo,propeller would (ou e"pet to find a par2ing bra2e9. Option A. Compounded twin spool. Option B. iret oupled twin spool. Option C. 5ree turbine. Corret Answer is. 5ree turbine. !"planation. 'he par2ing bra2e stops the propeller rotating when the engine is stopped.

Question Number. 1*. &hat does the tor7uemeter reading indiate in a gas turbine engine9. Option A. 'or7ue reation at the redution gear. Option B. 'he ratio between engine thrust and engine tor7ue. Option C. !ngine tor7ue.

Corret Answer is. 'or7ue reation at the redution gear. !"planation. 0epperson Airraft Propellers and Controls Page ++ refers.

Question Number. 1-. 'he gear segments on the blade roots of a h(dromati propeller mesh with the. Option A. stationar( am. Option B. tor7ue tubes and e(e bolts. Option C. mo)ing am. Corret Answer is. mo)ing am. !"planation. 0epperson AP Powerplant Page 1%,1 refers.

Question Number. 1+. A propeller is entralised on the propeller shaft b(. Option A. the front and rear ones. Option B. the front git seal. Option C. the rear pre,load shims. Corret Answer is. the front and rear ones. !"planation. 5ront and rear ones , 0epperson Airraft Propellers and Controls.

Question Number. 1. Redution gearing allows the. Option A. blade tips to operate below the speed of sound. Option B. blade tips to operate abo)e the speed of sound. Option C. blade tips to rotate slower than the root of the propeller blade. Corret Answer is. blade tips to operate below the speed of sound. !"planation. Propellers alwa(s operate slower than the engine to ensure the blade tips do not go soni.

Question Number. 18. &hen fitting a propeller to a tapered shaft. Option A. loate the master spline. Option B. ensure the master spline and blade alignment are in aordane with the MM.

Option C. ensure full( seated. Corret Answer is. loate the master spline. !"planation. 0epperson Airraft Propellers and Controls Page %; refers.

Question Number. 1:. &hat is the purpose of small holes at the tip of wooden propellers9. Option A. rainage. Option B. Balaning. Option C. Pi)ot points used during manufature. Corret Answer is. rainage. !"planation. 0epperson Airraft Propellers and Controls Page 1-* refers.

Question Number. 1;. 'he thrust fae of a propeller blade is the. Option A. root to whih the gear segment is fitted. Option B. blade fae or flat side. Option C. blade ba2 or ur)ed side. Corret Answer is. blade fae or flat side. !"planation. 0epperson AP Powerplant 5ig 1%,1 Refers.

Question Number. %/. =olidit( of a propeller an be inreased b(. Option A. inreasing blade hord. Option B. inreasing blade angle. Option C. inreasing blade thi2ness. Corret Answer is. inreasing blade hord. !"planation. AC to belie)ing there is a redution in speed6 thus dereasing the blade  pith to speed the propeller ba2 up.

Question Number. 1*. &hen is superfine pith used9. Option A. $anding and ta2eoff. Option B. #n ruise. Option C. !ngine starting to redue propeller tor7ue loading on starter motor. Corret Answer is. !ngine starting to redue propeller tor7ue loading on starter motor. !"planation. Caips $eaflet P$41,1 refers to ground fine pithL belie)ed to be an alternati)e to =uperfine Pith.

Question Number. 1-. Option A. onspeed. Option B. o)erspeed.

&hen the fl(weights fl( outwards in a PC>6 this is 2nown as.

Option C. low power settings with higher than normal pith setting for ground manoeu)res. Corret Answer is. o)erspeed. !"planation. Refer 0epperson Airraft Propellers and Controls Page ++,+:.

Question Number. 1+. #n an on speed ondition6 oil in the tube. Option A. remains onstant. Option B. flows in the tubes. Option C. flows out of the tubes Corret Answer is. remains onstant. !"planation. Refer 0epperson Airraft Propellers and Controls Page ++,+:.

Question Number. 1. On a re)ersing propeller mo)ing to the ma"imum re)ersing angle6 the propeller goes. Option A. from fine pith through plane of rotation6 ourse re)erse then fine re)erse. Option B. from ourse pith through plane of rotation ourse6 fine re)erse then ourse re)erse. Option C. from fine pith through plane of rotation6 fine re)erse then ourse re)erse. Corret Answer is. from fine pith through plane of rotation6 fine re)erse then ourse re)erse. !"planation. 5ine re)erse must ome before oarse re)erse.

Question Number. 18. #f pressure is inreased on the speeder spring6 rpm inreases. &hat happens to the blade angle9. Option A. Remains unhanged. Option B. #nreases. Option C. ereases. Corret Answer is. ereases. !"planation. 0epperson Airraft Propellers and Controls pages ++,+: Refers.

Question Number. 1:. Option A. A'M.

#n a prop with ounterweights6 what is used to ma2e it mo)e to fine pith9.

Option B. Centrifugal fore ating on the ounterweight. Option C. ?o)ernor oil pressure. Corret Answer is. ?o)ernor oil pressure. !"planation. 0epperson Airraft Propellers and Controls page :1 refers.

Question Number. 1;. #f a propeller is in fine pith and then mo)es to feather it will pass throug. Option A. flight fine onl(. Option B. re)erse. Option C. oarse. Corret Answer is. oarse. !"planation. 0epperson Airraft Propellers and Controls 5ig 11.1 refers.

Question Number. %/. A FdoubleF ating propeller has. Option A. nitrogen or air on one side of piston. Option B. oil pressure on one side of piston. Option C. oil pressure on two sides of piston. Corret Answer is. oil pressure on two sides of piston. !"planation. 0epperson Airraft Propellers and Controls 5ig 11,*% refers.

Question Number. %1. uring normal propeller operation6 oil pressure for the go)ernor is pro)ided b(. Option A. a pump in the go)ernor. Option B. a )ariable )olume pump. Option C. the engine dri)en pump. Corret Answer is. a pump in the go)ernor. !"planation. 0epperson Airraft Propellers and Controls refer. All go)ernors ha)e a built in pump.

Question Number.

%%.

Oil for an on,speed ondition passes through.

Option A. the oarse pith line. Option B. the fine pith line. Option C. neither of the lines. Corret Answer is. neither of the lines. !"planation. 0epperson Airraft Propellers and Controls Pages ++,+: refer.

Question Number. %*. #f the spur gear pump in a single ating propeller go)ernor failed6 the. Option A. blades would turn to a oarse pith. Option B. blades would rotate to a fine pith. Option C. blades would mo)e to the feather position. Corret Answer is. blades would turn to a oarse pith. !"planation. 0epperson Airraft Propellers and Controls Page % refer.

Question Number. %-. 'he h(dromati )ariable pith propeller is operated on the priniple of. Option A. a )enturi or FuF tube with merur(. Option B. an eletrial motor mo)ing a gear segment. Option C. oil pressure mo)ing a piston. Corret Answer is. oil pressure mo)ing a piston. !"planation. 0epperson Airraft Propellers and Controls Page :+ refer.

Question Number. %+. 'he onstant speed unit C.=.>.D go)ernor wor2s on the priniple of. Option A. manual seletion through a gearbo". Option B. entrifugal twisting moments. Option C. spring pressure ating against entrifugal fore. Corret Answer is. spring pressure ating against entrifugal fore. !"planation. 0epperson AP Powerplant Page 1%,84: refers.

Question Number. %. 'he purpose of the pith hange ams is to. Option A. on)ert rotar( motion to linear motion. Option B. pre)ent windmilling. Option C. on)ert linear motion to rotar( motion. Corret Answer is. on)ert linear motion to rotar( motion. !"planation. 0epperson Airraft ?as 'urbine Powerplants 5ig 1%,1- refers.

Question Number. %8. 'he gear t(pe pump in a C.=.>. or P.C.>. Option A. lubriates the entire propeller s(stem. Option B. boosts engine oil s(stem pressure. Option C. assist the go)ernor )al)e to mo)e. Corret Answer is. boosts engine oil s(stem pressure. !"planation. 0epperson Airraft Propellers and Controls 5ig 11,** refers.

Question Number. %:. &hen an engine fails. Option A. the propeller is feathered using an eletrial feathering pump. Option B. the propeller is feathered using the propeller go)ernor pump. Option C. the propeller is feathered using ounterweights. Corret Answer is. the propeller is feathered using an eletrial feathering pump. !"planation. 0epperson AP Powerplant Page 1%,*/ refers.

Question Number. %;. 'he purpose of an aumulator in a single ating propeller s(stem is to. Option A. to port oil to the oarse pith oil line to assist in feathering the propelle. Option B. aelerate the unfeathering proess. Option C. pro)ide ba2 up to the go)ernor pump. Corret Answer is. aelerate the unfeathering proess. !"planation. 0epperson AP Powerplant Page 1%,% refers.

Question Number. */. &hen auto feathering has ta2en plae the feathering pump is swithed off b(. Option A. pressure ontrol drop swith. Option B. arr(ing out the manual feather drill. Option C. remo)ing the pump iruit brea2er or fuse. Corret Answer is. arr(ing out the manual feather drill. !"planation. 'he pump is swithed off b( pressing the alternate ation pump swith,part of the manual feather drill.

Question Number. *1. On a free turbine engine it is possible to )ar( the propeller RPM whilst the engine RPM remains onstant. Option A. b( operating the Power le)er. Option B. it is not possible to )ar( the propeller RPM. Option C. b( operating the PC> ontrol $e)er. Corret Answer is. b( operating the PC> ontrol $e)er. !"planation. 'he PC> le)er hanges the pressure on the go)ernor spring thus hanging the pith of the blades.

Question Number. *%. A propeller ontrol >nit h(drauli s(stem is supplied with oil from the. Option A. engine lubriation oil tan2. Option B. airraft h(drauli =(stem. Option C. PC> oil tan2. Corret Answer is. engine lubriation oil tan2. !"planation. 0epperson Airraft Propellers and Controls Page +; refers.

Question Number. **. $ow tor7ue sensing is used to initiate. Option A. relighting. Option B. fine pith seletion. Option C. auto feathering. Corret Answer is. auto feathering.

!"planation.

0epperson Airraft Propellers and Controls Page 1*+ refers.

Question Number. *-. &hat is the purpose of the auto oarsening s(stem9. Option A. 'o pre)ent o)erspeeding in the e)ent of the flight fine pith stop failing. Option B. 'o redue drag during power loss. Option C. 'o sa)e the pilot ma2ing minor hanges when hanging altitude. Corret Answer is. 'o pre)ent o)erspeeding in the e)ent of the flight fine pith stop failing. !"planation. CA#PFs $eaflet P$41,1 refer , note this is not an auto feather s(stem.

Question Number. *+. #n a single ating propeller6 blade angle is inreased b(. Option A. ounterweights and a feathering spring. Option B. C'M. Option C. oil pressure. Corret Answer is. ounterweights and a feathering spring. !"planation. CA#PFs P$ leaflets refer. Oil pressure turns the prop to fine. #f the oil pressure is released b( the C=> the spring and ounterweights dri)e the prop to feather.

Question Number. *. 'he funtion of a propeller pith lo2 is to pre)ent the propeller from. Option A. oarsening. Option B. reduing below flight fine pith. Option C. fining off in the e)ent of pith lo2 mehanism failure. Corret Answer is. fining off in the e)ent of pith lo2 mehanism failure. !"planation. CA#PFs P$ leaflets refer to a pith lo2 that holds the fine pith stop in position6 but also adds that some manufaturers ha)e a pith lo2 de)ie that lo2s the prop in its last position in the e)ent of failure of the pith lo2 mehanism. 5or a desription of this s(stem see 0eppesen Airraft Propellers and Controls page 1*.

Question Number.

*8.

'he minimum propeller pith is established b( the.

Option A. superfine pith stop. Option B. pith $o2. Option C. flight fine pith stop. Corret Answer is. superfine pith stop. !"planation. CA#PFs P$ leaflets refer. Oil pressure turns the prop to fine. #f the oil pressure is released b( the C=> the spring and ounterweights dri)e the prop to feather.

Question Number. *:. Oil for the feathering s(stem is ta2en from. Option A. a separate feathering oil tan2. Option B. a feathering reser)e in the engine oil tan2. Option C. the engine lubriation s(stem. Corret Answer is. a feathering reser)e in the engine oil tan2. !"planation. 0epperson Airraft Propellers and Controls Page 1/ refers.

Question Number. *;. &hat are the entrifugal lathes in a single ating propeller used for9. Option A. Pre)ent C'M. Option B. Pre)ent feathering of the prop on shutdown. Option C. Pre)ent Propeller mo)ing to superfine. Corret Answer is. Pre)ent feathering of the prop on shutdown. !"planation. 0epperson Airraft Propellers and Controls 5ig 11,- refers.

Question Number. -/. #n a two position propeller. Option A. A'M turns the prop to fine. Option B. oil pushes the prop to fine. Option C. oil pushes the prop to oarse. Corret Answer is. oil pushes the prop to fine. !"planation. 0epperson airraft propellers and ontrols Page ; Refers.

Question Number. -1. An o)erspeed ondition auses go)ernor spring pressure to be. Option A. the same as entrifugal fore. Option B. more than entrifugal fore. Option C. less than entrifugal fore. Corret Answer is. less than entrifugal fore. !"planation. 'he bob weights lift the go)ernor )al)e in this ondition6 thus the( ha)e more fore than the spring.

Question Number. -%. &hen the engine is running6 the C=> is sensing. Option A. propeller tip speed. Option B. propeller blade angle. Option C. engine RPM. Corret Answer is. engine RPM. !"planation. !ngine RPM is sensed )ia the go)ernor bob weights.

Question Number. -*. An aumulator ma( be fitted to. Option A. feather the propeller. Option B. unfeather the propeller. Option C. pro)ide emergen( ontrol. Corret Answer is. unfeather the propeller. !"planation. 'he aumulator is needed to dri)e the prop out of feather and hene get it rotating. Normall( seen on a single ating  propeller s(stem.

Question Number. --. #f go)ernor weight spring pressure is redued. Option A. go)ernor weights will pi)ot inwards raising the go)ernor )al)e allowing the blades to mo)e to a oarser pith. Option B. go)ernor weights will spring outwards raising the go)ernor )al)e allowing the blades to mo)e to a finer pith. Option C. go)ernor weights will spring outwards raising the go)ernor )al)e allowing the blades to mo)e to a oarser pith.

Corret Answer is. go)ernor weights will spring outwards raising the go)ernor )al)e allowing the blades to mo)e to a oarser  pith. !"planation. &hen Fon speedF spring pressure e7uals the go)ernor entrifugal fore.

Question Number. -+. A onstant speed )ariable pith propeller is running whilst stationar( on the ground. #f it is faing into a headwind it will. Option A. speed up. Option B. remain onstant. Option C. slow down. Corret Answer is. remain onstant. !"planation. A headwind ats the same as inreased forward speed. 'he prop will oarsen off and the speed will remain the same.

Question Number. -. #f the 'A= of an airraft inreases6 the C=> will. Option A. inrease the blade angle to pro)ide onstant RPM. Option B. derease the blade angle to pro)ide onstant RPM. Option C. hange the blade angle to pro)ide onstant RPM. Corret Answer is. inrease the blade angle to pro)ide onstant RPM. !"planation. 'his auses blade to oarsen off to stop o)erspeeding and as a result the speed remains the same.

Question Number. -8. &hen go)ernor spring load is less than go)ernor weights6 the C=> is in. Option A. o)erspeed. Option B. underspeed. Option C. underspeed. Corret Answer is. o)erspeed. !"planation. 0eppersen Airraft Propellers and Controls Page +8 refers.

Question Number.

-:.

An airraftFs propeller s(stem beta range.

Option A. is used to ahie)e ma"imum thrust during ta2e,off. Option B. refers to the most fuel effiient pith range to use at a gi)en engine RPM. Option C. is used to produe Iero or negati)e thrust. Corret Answer is. is used to produe Iero or negati)e thrust. !"planation. Beta range is used on the ground.

Question Number. -;. How is a propeller ontrolled in a large airraft9. Option A. B( engine power le)er. Option B. B( )ar(ing teh engine RPM e"ept for feathering and re)ersing. Option C. #ndependentl( of the engine. Corret Answer is. B( engine power le)er. !"planation. AC+,1%A.

Question Number. +/. Manuall( feathering a h(dromehanial propeller means to. Option A. blo2 go)ernor oil pressure to the (linder of the propeller. Option B. port go)ernor oil pressure to the (linder of the propeller. Option C. blo2 go)ernor oil pressure from the (linder of the propeller. Corret Answer is. blo2 go)ernor oil pressure from the (linder of the propeller. !"planation. AC+,1%A.

Question Number. +1. How is the oil pressure deli)er( on a h(dromati propeller normall( stopped after the blades ha)e reahed their full,feathered position9. Option A. =top lugs in the teeth of the rotating am. Option B. !letri ut,out pressure swith. Option C. Pulling out the feathering push,button. Corret Answer is. !letri ut,out pressure swith. !"planation. AC+,1%A.

Question Number. +%. Counterweights on onstant,speed propellers are generall( used to. Option A. inrease blade angle. Option B. derease blade angle. Option C. unfeather the propeller. Corret Answer is. inrease blade angle. !"planation. AC+,1%A.

Question Number. +*. Constant speed non,feathering MCaule(6 HartIell and other propellers of similar design without ounterweights inrease pith angle using. Option A. entrifugal twisting moment. Option B. spring pressure. Option C. oil pressure. Corret Answer is. oil pressure. !"planation. AC+,1%A.

Question Number. +-. &hat are the rotational speed and blade pith angle re7uirements of a onstant,speed propeller during ta2e,off9. Option A. High speed and low pith angle. Option B. High speed and high pith angle. Option C. $ow speed and high pith angle. Corret Answer is. High speed and low pith angle. !"planation. AC+,1%A.

Question Number. ++. A onstant speed propeller pro)ides ma"imum effiien( b(. Option A. inreasing the lift oeffiient of the blades. Option B. adEusting blade angle for most onditions enountered during flight. Option C. inreasing blade pith as the airraft speed inreases.

Corret Answer is. adEusting blade angle for most onditions enountered during flight. !"planation. AC+,1%A.

17.4 Propeller Synchronising.

Question Number. 1. =(nhrophasing redues )ibration b( the use of. Option A. pulse probes and a single s(nhrophase unit. Option B. tahometers and orretion motors. Option C. oordinating the rpm of eah engine. Corret Answer is. pulse probes and a single s(nhrophase unit. !"planation. Refer 0epperson Airraft Propellers and Controls Page 1*-.

Question Number. %. =(nhronising an onl( be ahie)ed if the sla)e propeller is. Option A. the same speed as the master. Option B. within %/ rpm of the master. Option C. within 1// rpm of the master. Corret Answer is. within 1// rpm of the master. !"planation. 0epperson Airraft Propellers and Control page 1*% refers.

Question Number. *. =(nhronising is arried out to. Option A. math propeller tip speed. Option B. math engine rpm. Option C. math blade phase angle differene. Corret Answer is. math propeller tip speed. !"planation. 0epperson Airraft Propellers and Control page 1*% refers.

Question Number. -. 'he s(nhronisation go)ernor monitors. Option A. RPM. Option B. propeller tip speeds. Option C. thrust tip speeds. Corret Answer is. RPM. !"planation. 0epperson Airraft Propellers and Controls Page *8 refers.

Question Number. +. =(nhronisation is used to. Option A. redue )ibration and noise. Option B. redue the pith of the fastest running blade. Option C. preset the phase angle of propellers. Corret Answer is. redue )ibration and noise. !"planation. Refer 0epperson Airraft Propellers and Controls Page1*1.

Question Number. . =(nhronisation is used. Option A. on the ground. Option B. in flight e"ept landing and ta2e off. Option C. in flight. Corret Answer is. in flight e"ept landing and ta2e off. !"planation. 0epperson Airraft Propellers and Control Page1* refer to Auto 5eather s(stems.

Question Number. 8. 'he propeller s(nhronising s(stem is put into operation b(. Option A. adEusting the engine rpm at re7uired ruise speed then swithing on the s(nhroniser. Option B. adEusting the engine rpm then propeller rpm to re7uired speed then swithing on. Option C. swithing on the s(nhroniIer then adEust the engine rpm so that all engines adEust together. Corret Answer is. adEusting the engine rpm at re7uired ruise speed then swithing on the s(nhroniser.

!"planation.

0epperson airraft propellers and ontrols Page 1*% Refers.

Question Number. :. Propellers are s(nhronised b( the. Option A. power le)er. Option B. PC> go)ernor. Option C. prop le)er. Corret Answer is. PC> go)ernor. !"planation. !H0 Pallett Airraft !letrial =(stems Page 1:% refers.

Question Number.

;.

>nli2e the automati s(nhroniIing s(stem6 the s(nhrophasing s(stem of a two,propeller airraft.

Option A. sets the blade phase angle of two onstant speed propellers. Option B. auses the same rotation speed of the two propellers. Option C. mathes the blade angle of )ariable pith propellers. Corret Answer is. sets the blade phase angle of two onstant speed propellers. !"planation. =(nhrophasing is the setting of blade phase angle differene to minimise )ibration.

Question Number. 1/. #n a propeller s(nhrophasing s(stem6 an eletri atuator. Option A. rotates ontrolsD the sla)e engine go)ernor. Option B. e7ualiIes the go)ernor signals. Option C. turns the fle"ible shaft leading to the trimmer assembl(. Corret Answer is. rotates ontrolsD the sla)e engine go)ernor. !"planation. 0eppesen Propellers and ontrols 5ig 1*,%/ shows the atuator attahed to the go)ernor.

Question Number. 11. #f one signal is lost into the omparator unit when =(nhrophasing is operating. Option A. =(nhrophasing is lost and the engines ontinue to funtion normall(. Option B. the slower engine immediatel( goes to feather.

Option C. both engines remain running until there is a differene6 of ommonl(6 - to + perentD6 at whih the slower of the engines is then feathered. Corret Answer is. =(nhrophasing is lost and the engines ontinue to funtion normall(. !"planation. =(nhrophasing is used in onEuntion with s(nhronising to redue airraft )ibration.

Question Number. 1%. =(nhronisation ontrols RPM within what range9. Option A. 1// RPM. Option B. 1+/ RPM. Option C. +/ RPM. Corret Answer is. 1// RPM. !"planation. 0eppersen Airraft Propellers and Controls Page 1*% refers.

Question Number. 1*. &hen should s(nhronisation be used9. Option A. uring ruise. Option B. uring landing. Option C. An(time. Corret Answer is. uring ruise. !"planation. 0eppersen Airraft Propellers and Controls Page 1*% refers.

Question Number. 1-. Propeller =(nhroniIing wor2s utiliIing. Option A. RPM $e)ers. Option B. propeller le)er. Option C. go)ernor. Corret Answer is. go)ernor. !"planation. 'he go)ernor is sometimes 2nown as a omparator unit.

Question Number.

1+.

#n relation to a propeller airraft6 s(nhrophasing would be used on.

Option A. all Airraft. Option B. all Multi engine airraft. Option C. turbo prop Airraft. Corret Answer is. all Multi engine airraft. !"planation. =(nhrophasing an be used on an( multi propeller dri)en airraft.

Question Number. 1. A propeller s(nhrophasing s(stem allows a pilot to redue noise and )ibration b(. Option A. setting the RPM of all propellers e"atl( the same. Option B. adEusting the plane of rotation of all propellers. Option C. adEusting the phase angle between the propellers. Corret Answer is. adEusting the phase angle between the propellers. !"planation. N#$.

Question Number. 18. A propeller s(nhronising s(stem allows a pilot to redue noise and )ibration b(. Option A. adEusting the phase angle between the propellers. Option B. setting the RPM of all propellers e"atl( the same. Option C. adEusting the plane of rotation of all propellers. Corret Answer is. setting the RPM of all propellers e"atl( the same. !"planation. +,1%A.

Question Number. 1:. &hat is the funtion of automati propeller s(nhroniIing s(stem on multiengined airraft9. Option A. 'o ontrol tip speed of all propellers. Option B. 'o ontrol the power output of all engines. Option C. 'o ontrol engine RPM and redue )ibration. Corret Answer is. 'o ontrol engine RPM and redue )ibration. !"planation. +,1%A.

Question Number. 1;. On most reiproating multiengined airraft6 automati propeller s(nhroniIation is aomplished through the atuation of the. Option A. propeller go)ernors. Option B. propeller ontrol le)ers. Option C. throttle le)ers. Corret Answer is. propeller go)ernors. !"planation. AC+,1%A.

17.5 Propeller ce Protection.

Question Number. 1. !letriall( de,ied propeller slip rings ha)e regular resistane he2s for. Option A. o"idisation due to altitude. Option B. open iruit heating elements. Option C. wear between brushes and slip ring. Corret Answer is. open iruit heating elements. !"planation. A pair of slip rings ondut power to the heating elements CA#PFs leaflet P$41,- refers.

Question Number. %. Propeller anti,iing ma( be ahie)ed b(. Option A. using iso,prop(l alohol de,iing fluid spra(ed on the blade. Option B. using ommerial de,iing fluid spra(ed on the pro. Option C. a using hot air from the ompressor. Corret Answer is. using iso,prop(l alohol de,iing fluid spra(ed on the blade. !"planation. 0epperson Airraft Propellers and Control page 1%- refers.

Question Number.

*.

e,iing of the propeller an be monitored b(.

Option A. )iewing the deiing fluid le)el sight glass. Option B. )iewing the blade and obser)ing ie falling off the blade. Option C. an ammeter in the flight de2. Corret Answer is. an ammeter in the flight de2. !"planation. 0epperson Airraft Propellers and Control page 1%; refers.

Question Number. -. #nsulation testing of eletrial de,iing s(stems should be periodiall( arried out beause of. Option A. an open iruit in one of the blades. Option B. o"idation due to atmospheri onditions. Option C. wear on the slip rings. Corret Answer is. an open iruit in one of the blades. !"planation. CA#Ps leaflet P$41,- refers.

Question Number. +. #nsulation he2s on propeller eletrial heating elements should be arried out fre7uentl( due to. Option A. short4open iruits in the heating s(stem wires along the propeller blade. Option B. o"idation of slip ring and brush gear assembl(. Option C. deposits formed due to the wear of slip ring and brush gear assembl(. Corret Answer is. short4open iruits in the heating s(stem wires along the propeller blade. !"planation. CA#PFs $eaflet P$41,- Para *.*,% Refers.

Question Number. . &here is the de,iing boot9. Option A. Root. Option B. 'railing edge. Option C. 'ip. Corret Answer is. Root. !"planation. Refer 0epperson Airraft Propellers and Controls Pages 1%,1%8.

Question Number. 8. How is anti iing fluid fed to the indi)idual blades9. Option A. Pump to a slinger ring. Option B. Pump to eah blade rubber feed boot. Option C. >nder gra)it( to the slinger ring then on to the blade. Corret Answer is. Pump to a slinger ring. !"planation. 0epperson Airraft Propellers and Controls Page 1%- refers.

Question Number. :. #e is remo)ed from blades b(. Option A. a ontinuousl( heated eletrial boot. Option B. rubber boots inflated in se7uene using ompressor hot air. Option C. inboard and outboard boot setions heated in se7uene b( ation of the timer. Corret Answer is. inboard and outboard boot setions heated in se7uene b( ation of the timer. !"planation. 0epperson Airraft Propellers and Controls Page 1% refers.

Question Number. ;. Propeller blades are de,ied b(. Option A. eletrial heating elements bound in rubber o)ershoes on the blade leading edges. Option B. generating edd( urrents in the blade. Option C. eletrial heating elements wound around rubber shoes. Corret Answer is. eletrial heating elements bound in rubber o)ershoes on the blade leading edges. !"planation. 0epperson Airraft Propellers and Controls Page 1% refers.

Question Number. 1/. !letrial power supplies on large airraft6 for eletrial deiing are. Option A. AC. Option B. C. Option C. Both AC or C. Corret Answer is. C. !"planation. CA#Ps P$ leaflets Refer.

Question Number. 11. Propeller slip rings. Option A. on)e( oil for PC> to pith hange mehanism. Option B. minimise slip. Option C. ondut eletrial power for de,iing. Corret Answer is. ondut eletrial power for de,iing. !"planation. 0epperson Airraft Propellers and Controls Page 1% refers.

Question Number. 1%. On an eletrial deiing s(stem fast (le is used. Option A. at low air temperature. Option B. at high air temperature. Option C. on the ground. Corret Answer is. at high air temperature. !"planation. Rolls Ro(e page 1+1 refers. =low (le meaning the elements are on for longer.

Question Number. 1*. 'he output of an anti,iing pump is ontrolled b(. Option A. a rheostat. Option B. the hand pump. Option C. a (li timer. Corret Answer is. a rheostat. !"planation. 0epperson airraft propellers and ontrols Page 1%- Refers.

Question Number. 1-. e,iing fluid goes to a slinger ring from. Option A. an eletrial pump. Option B. a hand pump. Option C. a tan2 in the prop hub6 pro)iding onstant feed one released. Corret Answer is. an eletrial pump. !"planation. 'he pump is ontrolled b( a rheostat to 7ui2en or slow the flow.

Question Number. 1+. 'o inrease anti iing effeti)eness. Option A. inrease (le times. Option B. inrease the AC or C urrent. Option C. use li7uid as well as eletrial anti iing s(stems. Corret Answer is. inrease the AC or C urrent. !"planation. Antiing refers to fluid deiing in 0eppersen Propeller and Controls page 1%* therefore it is the rheostat that is adEusted to )ar( urrent.

Question Number. 1. Propeller de,iing for )ar(ing rates of iing an be )aried b(. Option A. inreasing propeller RPM. Option B. inreasing (li timing. Option C. inreasing the AC or C )oltage. Corret Answer is. inreasing (li timing. !"planation. >suall( a slow and fast (le are pro)ided.

Question Number. 18. Propeller e,iing an be he2ed b(. Option A. he2ing the tor7ue meter for abnormal readings. Option B. he2ing the the de,iing ammeter. Option C. )isuall( he2ing for ie on the blades. Corret Answer is. he2ing the tor7ue meter for abnormal readings. !"planation. isturbed airflow due to ie will redue the efiien( of the propeller.

Question Number. Option A. Option B.

1:.

Proper operation of eletri deiing boots on indi)idual propeller blades ma( be best determined b(.

feeling the se7uene of boot heating and ha)e an assistant obser)e the loadmeter indiations. feeling the boots to see if the( are heating.

Option C. obser)ing the ammeter or loadmeter for urrent flow. Corret Answer is. feeling the se7uene of boot heating and ha)e an assistant obser)e the loadmeter indiations. !"planation. +,1%A.

Question Number. 1;. &hat unit in the propeller anti,iing s(stem ontrols the output of the pump9. Option A. Pressure relief )al)e. Option B. Rheostat. Option C. C(ling timer. Corret Answer is. Rheostat. !"planation. +,1%A.

Question Number. %/. #e formation on the propellers6 when the airraft is in flight6 will. Option A. derease a)ailable engine power. Option B. inrease airraft stall speed and inrease noise. Option C. derease thrust and ause e"essi)e )ibration. Corret Answer is. derease thrust and ause e"essi)e )ibration. !"planation. +,1%A.

Question Number. %1. Propeller fluid anti,iing s(stems generall( use whih of the following9. Option A. !th(l alohol. Option B. !th(lene gl(ol. Option C. #soprop(l alohol. Corret Answer is. #soprop(l alohol. !"planation. +,1%A.

17.! Propeller Maintenance.

Question Number. 1. 'hrust and amber faes of a propeller should be blended out to. Option A. + times the depth of damage. Option B. 1/ times to the depth of damage. Option C. */ times to the depth of damage. Corret Answer is. */ times to the depth of damage. !"planation. Answer found in unattributed notes.

Question Number. %. An aerod(nami orretion fator that is preeded b( the letter Q indiates. Option A. thrust balane. Option B. d(nami balane. Option C. tor7ue balane. Corret Answer is. tor7ue balane. !"planation. N#$.

Question Number. *. $eading edges should be blended out to. Option A. + times the depth of damage. Option B. 1/ times the depth of damage. Option C. */ times the depth of damage. Corret Answer is. 1/ times the depth of damage. !"planation. Answer found in unattributed notes.

Question Number. -. #f the tip of an eletrial o)ershoe is torn. Option A. it ma( be ut ba2. Option B. it ma( be lassified as aeptable damage. Option C. it must not be ut ba2. Corret Answer is. it must not be ut ba2.

!"planation. N#$.

Question Number. +. 'he shan2 of the propeller is permitted to ha)e. Option A. no repairs. Option B. minor repairs. Option C. no deals fitted. Corret Answer is. no repairs. !"planation. Refer 0epperson AP Powerplant Page 1%,++.

Question Number. . &hen blending out a gouge on the fae or amber side of a blade6 the additional metal to be remo)ed for  stress relief is. Option A. /./% inh. Option B. /.//% inh. Option C. /.% inh. Corret Answer is. /.//% inh. !"planation. N#$.

Question Number. 8. &ooden propellers are permitted. Option A. repairs that do not affet weight and balane. Option B. no repairs. Option C. repairs using sawdust and aeroglue. Corret Answer is. repairs using sawdust and aeroglue. !"planation. 0epperson AP Powerplant page 1%,+* refers.

Question Number. :. 'he preser)ati)e used to protet metal blades is. Option A. lanolin. Option B. brown storage wa".

Option C. petroleum Eell(. Corret Answer is. lanolin. !"planation. N#$.

Question Number. ;. Composite propellers ma( ha)e minor repairs arried out b(. Option A. an( appro)ed *rd part( maintenane organiIation. Option B. the operator. Option C. an( appro)ed omposite repair failit(. Corret Answer is. an( appro)ed omposite repair failit(. !"planation. Must be omposite speialist organiIation.

Question Number. 1/. etails of propeller o)erhaul ma( be found in. Option A. Airworthiness Notie 8+. Option B. the AMM. Option C. Airworthiness Notie ++. Corret Answer is. Airworthiness Notie 8+. !"planation. Refer CAA Airworthiness Notie 8+.

Question Number.

11.

'he ground learane of a single engine tail wheel airraft propeller is measured with the airraft.

Option A. tail wheel on the ground. Option B. tail wheel in the ta2e off position. Option C. in the rigging position. Corret Answer is. tail wheel in the ta2e off position. !"planation. Refer 0AR %+.;%+.

Question Number.

1%.

'he strutural learane of a multi engine airraft propeller.

Option A. is ta2en between the engines with the props aligned. Option B. is ta2en between the prop and the fuselage. Option C. is ta2en from the ground. Corret Answer is. is ta2en between the prop and the fuselage. !"planation. Refer 0AR %+.;%+. =ometimes 2nown as tip learane.

Question Number. 1*. &hat position should the blades be when installing the pith hange mehanism onto a h(dromati  propeller9. Option A. 5eather. Option B. ero pith. Option C. 5ull re)erse. Corret Answer is. 5eather. !"planation. N#$.

Question Number. 1-. 'he ground seaD learane of a sea plane propeller is. Option A. 1 inh. Option B. ; inhes. Option C. 1: inhes. Corret Answer is. 1: inhes. !"planation. 0epperson Airraft Propellers and Controls 5ig %,+ refers.

Question Number. 1+. Cropping is permitted to a ma"imum of. Option A. 1 inh on all blades. Option B.  inh on all blades. Option C.  inh on one blade onl(. Corret Answer is. 1 inh on all blades. !"planation. #f 1 blade is ropped all must be ropped e7uall(.

Question Number. 1. (nami balane is onfirmed b( use of. Option A. 2nife edges and mandrel. Option B. a tra2ing he2. Option C. a )ibration anal(ser. Corret Answer is. a )ibration anal(ser. !"planation. Refer 0epperson Powerplant Page 1%,/.

Question Number. 18. A metal propeller ma( be statiall( balaned b(. Option A. adding )arnish to the lighter blade. Option B. remo)ing metal from the opposite blade. Option C. adding or remo)ing lead wool to the hollow blade roots. Corret Answer is. adding or remo)ing lead wool to the hollow blade roots. !"planation. Refer 0epperson Powerplant Page 1%,1%.

Question Number. 1:. Mehanial )ibration relating to propellers in a piston powered airraft. Option A. is due to the ran2shaft at intermittent power settings. Option B. is due to the lead lag of the propeller ompared to the engine. Option C. is due to the power stro2e of the engine and ma( ha)e a more detrimental effet than aerod(nami )ibration. Corret Answer is. is due to the power stro2e of the engine and ma( ha)e a more detrimental effet than aerod(nami )ibration. !"planation. 0epperson Airraft Propellers and Control page 1 refers.

Question Number. 1;. Aerod(nami Corretion 5ator A C 5D. Option A. orrets for stati balane. Option B. is indiated in the form of degrees and minutes of pith. Option C. orrets for d(nami balane. Corret Answer is. is indiated in the form of degrees and minutes of pith. !"planation. A C 5 adEusts indi)idual blade pith angle to ompensate for aerod(nami differenes of blades in manufature.

Question Number. %/. A propeller with an adEustable blade an be adEusted. Option A. on the ground with the engine stationar(. Option B. in flight. Option C. on the ground with the engine running. Corret Answer is. on the ground with the engine stationar(. !"planation. 0epperson Airraft Propellers and Controls Page *8 refers.

Question Number. %1. &hen on the ground with the engine idling the prop ontrol should be. Option A. full( aft with the mi"ture at idle. Option B. full( aft with the mi"ture at rih. Option C. full( forward with the mi"ture at idle. Corret Answer is. full( aft with the mi"ture at rih. !"planation. 0epperson Powerplant Page %,1 refers, rih mi"ture ools the (linders.

Question Number. %%. Operation with the engine at ma"imum boost should be limited to. Option A. prop at fine to pre)ent o)erstressing the engine. Option B. prop at ourse to pre)ent o)erstressing the engine. Option C. prop at windmill to pre)ent o)erstressing the engine. Corret Answer is. prop at ourse to pre)ent o)erstressing the engine. !"planation. Ma"imum Boost indiates ma"imum power is applied to the prop.

Question Number. %*. amage to a leading edge an be blended in omparison to a blade fae. Option A. b( maintaining a smooth depression. Option B. b( not e"eeding %+@ of the hord. Option C. at a steeper angle. Corret Answer is. at a steeper angle.

!"planation. 1/31 ompared to */31.

Question Number.

%-.

'he longitudinal learane between the nose wheel and the propeller on a tri(le geared propeller is.

Option A. ; inhes. Option B. 1: inhes. Option C. 14% inh. Corret Answer is. 14% inh. !"planation. Refer 0AR,%+.;%+.

Question Number. %+. A tra2ing he2 ompares. Option A. % AdEaent blades. Option B. % Opposite blades. Option C. an( % blades. Corret Answer is. an( % blades. !"planation. Refer 0epperson Airraft Propellers and Controls Page *%.

Question Number. %. A line of indentations at one blade setion an be. Option A. blended within limits. Option B. left for up to 1% months. Option C. delared unser)ieable. Corret Answer is. delared unser)ieable. !"planation. 0epperson Airraft Propellers and Control Page 1% Refer.

Question Number. %8. Propeller )ibration due to a problem with propeller installations would ha)e a. Option A. the same fre7uen( as turbine )ibration. Option B. lower fre7uen( than turbine )ibration.

Option C. higher fre7uen( than turbine )ibration. Corret Answer is. lower fre7uen( than turbine )ibration. !"planation. Propeller RPM is alwa(s less than ?as 'urbine RPM therefore )ibration fre7uen( will alwa(s be less.

Question Number. %:. Preloading propeller blades before installation pre)ents. Option A. blade distortion. Option B. blade flutter. Option C. aerod(nami imbalane on the blades. Corret Answer is. blade flutter. !"planation. Preloading refers to shimming the blade gear boss when being mated with the be)el gear ams in the hub.

Question Number.

%;.

&hen unfeathering a propeller6 the blade should be put into what position to stop propeller o)erspeed9.

Option A. Negati)e pith. Option B. 5ine pith. Option C. Coarse pith. Corret Answer is. Coarse pith. !"planation. A Prop mo)ed to oarse pith will rotate the engine without o)erspeeding.

Question Number. */. Blade angle is measured using a. Option A. linometer. Option B. propeller protrator. Option C. be)el protrator. Corret Answer is. propeller protrator. !"planation. Refer 0epperson Airraft Propellers and Controls 5ig 1,8.

Question Number.

*1.

#n the Beta range6 angle of atta2 inreases. 'he fuel flow inreases6 and what else inreases9.

Option A. 5uel temperature. Option B. !PR and fuel temperature. Option C. RPM and !?'. Corret Answer is. RPM and !?'. !"planation. #f fuel flow inreases then RPM and !?' of the ?as ?enerator must inrease.

Question Number. *%. &ith a propeller defet6 the fre7uen( of )ibration will be. Option A. higher than a au"iliar( gearbo" defet. Option B. lower than a turbine defet. Option C. higher than a turbine defet. Corret Answer is. lower than a turbine defet. !"planation. Propeller )ibration is alwa(s lower then turbine )ibration.

Question Number. **. Blending of propeller blade defets refers to the. Option A. repainting of blade tips after ropping. Option B. mathing of paint finishes for appearanes. Option C. on)ersion of rough or sharp edges into smooth depression. Corret Answer is. on)ersion of rough or sharp edges into smooth depression. !"planation. 0epperson Airraft Propellers and Controls Page %1.Blending is the smoothing of a defet.

Question Number. *-. Remo)al of material from the propeller blade tips6 resulting in a redution in propeller diameter is alled. Option A. tipping. Option B. ropping. Option C. topping. Corret Answer is. ropping. !"planation. #f (ou rop one blade normall( 1 inh ma"imumD the opposite blade must also be ropped.

Question Number. *+. Prior to using the uni)ersal propeller protrator. Option A. ensure the propeller blade is at the horiIontal. Option B. determine the referene blade station. Option C. he2 date stamp for ser)ieabilit(. Corret Answer is. determine the referene blade station. !"planation. 0epperson Airraft Propellers and Controls Page * refers.

Question Number. *. 'o fit a new front one to a prop shaft firstl(. Option A. eth the propeller serial number to the rear fae. Option B. ut in half with a ha2saw and eth a uni7ue serial number to both hal)es. Option C. oat in !ngineers blue to ensure seating in the propeller front boss. Corret Answer is. ut in half with a ha2saw and eth a uni7ue serial number to both hal)es. !"planation. 0epperson Airraft Propellers and Controls Page */ refers.

Question Number. *8. Blade tra2ing is adEusted b(. Option A. adding lead wool to the blade shan2. Option B. re,seating the propeller on the front and rear ones. Option C. b( fitting shims to the propeller shaft hub. Corret Answer is. b( fitting shims to the propeller shaft hub. !"planation. 0epperson Airraft Propellers and Controls Page ** refers.

Question Number. *:. &hih of the following funtions re7uires the use of a propeller blade station9. Option A. #nde"ing blades. Option B. Propeller balaning. Option C. Measuring blade angle. Corret Answer is. Measuring blade angle. !"planation. N#$.

Question Number. *;. 'o ondut a power he2 of an internal ombustion engine re7uires. Option A. oarse pith setting and ad)ane the throttle to the target RPM. Option B. fine pith setting and ad)ane the engine to the target RPM setting. Option C. fine pith setting and ad)ane the engine to the ma" RPM setting. Corret Answer is. fine pith setting and ad)ane the engine to the target RPM setting. !"planation. 0epperson AP Powerplant Page %,1 refers.

Question Number. -/. 'he power output of a turboprop engine is he2ed b(. Option A. referene RPM. Option B. referene 'hrust. Option C. referene 'or7ue. Corret Answer is. referene 'or7ue. !"planation. Rolls Ro(e 0et !ngine Page 1*8.

Question Number. -1. #mmediatel( after blending out damage to to a blade the repair must be. Option A. re,proteted against orrosion. Option B. ra2 he2ed. Option C. balaned. Corret Answer is. ra2 he2ed. !"planation. Cra2 he2 before re,protetion.

Question Number. -%. How is the effiien( of a turbo prop engine assessed9. Option A. B( orreting propeller RPM for ambient Air temperature and barometri pressure. Option B. B( omparing ompressor and propeller RPM against a referene figure. Option C. B( omparing tor7ue meter pressure against a referene figure.

Corret Answer is. B( orreting propeller RPM for ambient Air temperature and barometri pressure. !"planation. Rolls Ro(e 'he 0et !ngine Page 1*: Refers.

Question Number. -*. 'he limits for a tra2ing he2 are. Option A. 14- inh ma"imum differene between adEaent blades. Option B. 14: inh ma"imum differene between opposite blades. Option C. 14: inh ma"imum differene between all blades. Corret Answer is. 14: inh ma"imum differene between all blades. !"planation. 0epperson Airraft Propellers and Controls Page -* refers.

Question Number. --. After a lightning stri2e. Option A. the prop must be tra2ed. Option B. the propeller shaft should be he2ed for onentriit(. Option C. the heater elements should be he2ed for ontinuit( and insulation. Corret Answer is. the heater elements should be he2ed for ontinuit( and insulation. !"planation. 'a2en from unattributed notes, has an(one got a referene9.

Question Number. -+. After o)erspeeding to 11/@. Option A. no ation is re7uired. Option B. return propeller for o)erhaul. Option C. remo)e propeller for inspetion. Corret Answer is. no ation is re7uired. !"planation. >p to 11+@ no ation is neessar(.

Question Number. -. #ndentations to the blade fae are measured. Option A. indi)iduall(. Option B. indi)iduall( and olleti)el(.

Option C. olleti)el(. Corret Answer is. indi)iduall( and olleti)el(. !"planation. 'a2en from unattributed notes, has an(one got a referene9.

Question Number. -8. &hen a propeller has had a report of o)erspeeding. Option A. proedure is dependant on the e"tent of o)erspeeding. Option B. the propeller must be remo)ed and sent to the manufaturer. Option C. the propeller must be remo)ed and tra2ed. Corret Answer is. proedure is dependant on the e"tent of o)erspeeding. !"planation. CA#P= $flt P$41,- refers inspetion after o)erspeeding depends upon amount of o)erspeed.

Question Number. -:. 'he most signifiant effet of stone hips on a propeller is. Option A. thrust output of the propeller. Option B. strutural integrit( of the propeller. Option C. aerod(nami apabilit( of the propeller. Corret Answer is. strutural integrit( of the propeller. !"planation. Cra2s are initiated b( stone hips et.

Question Number.

-;.

?round running an airraft with a fi"ed pith prop with its tail into wind auses the engine RPM to.

Option A. inrease. Option B. sta( the same regardless of wind diretion. Option C. derease. Corret Answer is. derease. !"planation. A head wind on a dead engine will ause the prop to windmill. 'herefore a tail wind must do the opposite.

Question Number.

+/.

AdEustments to a )ariable pith propeller are.

Option A. made in the air using the s(nhroniIer. Option B. made on the ground with the engine stationar(. Option C. made on the ground with the engine running. Corret Answer is. made on the ground with the engine stationar(. !"planation. ?o)ernor spring pressure ma( be adEusted but onl( with the engine stationar(.

Question Number. +1. &hen a propeller is remo)ed6 the seuring parts are 2ept with. Option A. all separatel( in ases. Option B. the propeller. Option C. the engine. Corret Answer is. the engine. !"planation. #t is belie)ed that the seuring parts sta( with the engine6 but no referene an be found to support this.

Question Number. +%. uring engine warm up the mi"ture should be at. Option A. rih6 blades at feather. Option B. lean6 blades at superfine. Option C. rih6 blades at superfine. Corret Answer is. rih6 blades at superfine. !"planation. AP Mehanis !A+ states that engines should not be warmed up with a lean mi"ture and (ou would not do it with the prop in feather6 the engine load would be too great therefore b must be orret.

Question Number. +*. &hen unfeathering a propeller use. Option A. minimum RPM4min throttle. Option B. an( RPM min throttle. Option C. ma"imum RPM4min throttle. Corret Answer is. minimum RPM4min throttle. !"planation. A orrespondent reports that for a =AAB *-/ the power le)er is set at ground idle ;-/ RPMD and the ondition le)er at unfeather.

Question Number. +-. How is the onentriit( of a propeller shaft he2ed9. Option A. Mirometer. Option B. ial 'est #ndiator '#D. Option C. Ring gauge. Corret Answer is. ial 'est #ndiator '#D. !"planation. CA#Ps show '#Fs he2ing onentriit( of ran2shafts et.

Question Number. ++. Propeller slip rings should be. Option A. lubriated with silion grease. Option B. lubriated with graphite grease. Option C. leaned and left dr(. Corret Answer is. leaned and left dr(. !"planation. CA#Ps P$41,- para *.%.: refers.

Question Number. +. A splined hub is found be loose with the. Option A. e"essi)e spline wear. Option B. front ones bottomed against the front end of the splines. Option C. retaining nut tor7ue loading too low. Corret Answer is. front ones bottomed against the front end of the splines. !"planation. Cones used to entralise hubs on shafts. #f the( do not seat properl( the hub annot be held firm. =ee 0eppesen  propellers and ontrols fig +,1;.

Question Number. +8. &hen measuring RPM on a superharged engine with )ariable pith. Option A. ma"imum boost pressure and atual air pressure is used. Option B. engine boost pressure and atual air pressure is used. Option C. Iero boost pressure and atual air pressure is used.

Corret Answer is. Iero boost pressure and atual air pressure is used. !"planation. CA#Ps $eaflet !$4*,% para ;.:.* refers to testing on the fine pith stops and at the same manifold pressure indiated  before the engine was started #! Iero boostD6 orreted for.

Question Number. +:. On propeller seuring plates irlips should be. Option A. annealed and the springiness put ba2 into the irlip before it an be used again. Option B. used one onl(. Option C. used again as long as the irlip springs ba2 first time. Corret Answer is. used one onl(. !"planation. $(oming ha)e issued mandator( ser)ie bulletin %-/= dated * 5eb %//* stating that irlips6 lo2plates shims and retaining rings must be replaed at o)erhaul or remo)al regardless of ondition.

Question Number. +;. 'he ause of propeller out,of,tra2 )ibration is. Option A. propeller blade angle too large. Option B. stati imbalane. Option C. blade stiffness not e"atl( mathed. Corret Answer is. blade stiffness not e"atl( mathed. !"planation. ibration aused b( blades being out of tra2 means that the blades do not rotate in the same plane of rotation. ariable  blade stiffness ould ause the blades to fle" and thus ause the blades not to tra2 in the same plane.

Question Number. /. How is blending arried out on an aluminium propeller blade9. Option A. B( using a ourse file and peening. Option B. B( using a needle file and finish with emer( loth. Option C. B( using a sraper. Corret Answer is. B( using a needle file and finish with emer( loth. !"planation. 0eppersen Airraft Propellers and Controls Page %1 refers.

Question Number. 1. &here would (ou find information on RPM and Power ratings9. Option A. Painted onto the propeller. Option B. !ngine $og boo2. Option C. !thed on the Propeller. Corret Answer is. !ngine $og boo2. !"planation. CA#Ps leaflet !$4*,% states that the referene RPM is reorded in the engine log boo2 for power assurane he2s.

Question Number. %. uring a test on the feathering and un,feathering s(stems6 1D after seleting 5eather and pressing the feather button6 it remained pressed for about + seonds then automatiall( deseleted. %D &hen un,feather was seleted and the button  pressed6 it remained in for a short period and then autodeseleted. 'hese % situations would indiate. Option A. both s(stems are wor2ing orretl(. Option B. the 5eathering Pump is >nser)ieable sine the button did not de,press immediatel(. Option C. there is nothing wrong with the 5eathering motor but the >n,5eathering pump is unser). Corret Answer is. both s(stems are wor2ing orretl(. !"planation. s(stem is a h(dromati t(pe propeller ontrol. 'he feather4defeather swith is auto deseleted b( a pressure swith sensing the pressure build up in the hub after the desired position has been reahed.

Question Number. *. On a HartIell prop with ounterweights6 full oil suppl( would indiate. Option A. on,speed ondition. Option B. o)erspeed ondition. Option C. underspeed ondition. Corret Answer is. o)erspeed ondition. !"planation. 'he ounterweights are the lue here. 'his is a single ating propeller6 therefore if the tan2 is full the spring must be full( e"tended to ounterat an o)erspeed ondition.

Question Number. -. it is said to be in balane. Option A. )ertiall(.

#f a % blade prop is plaed on a 2nife edge and it ends up horiIontal blades at * and ; oFlo2 positionsD6

Option B. horiIontall(. Option C. d(namiall(. Corret Answer is. horiIontall(. !"planation. 0eppersen Airraft Propellers and Controls Page %/ refers.

Question Number. +. High !ngine Oil pressure ma( be aused b(. Option A. blo2ed sa)enge filter. Option B. restrited pump operation. Option C. higher oil pressure. Corret Answer is. blo2ed sa)enge filter. !"planation. Restrition of flow in the iruit6 assuming the pump is a full flow gearD t(pe6 will gi)e this indiation.

Question Number. . &hih of the following defets is ause for reEetion of wooden propellers9. Option A. An o)ersiIe hub or bolthole or elongated bolt holes. Option B. No proteti)e oating on propeller. Option C. =older missing from srew heads seuring metal tipping. Corret Answer is. An o)ersiIe hub or bolthole or elongated bolt holes. !"planation. =older or finish an be replaed elongated holes annot.

Question Number. 8. #nspetion of a propeller blade b( d(e penetrant inspetion is aomplished to detet. Option A. ra2s. Option B. orrosion at the blade tip. Option C. torsional stress. Corret Answer is. ra2s. !"planation. (e penetrant tehni7ues are used to detet surfae ra2s.

Question Number.

:.

&hih of the following is used to orret horiIontal imbalane of a wooden propeller9.

Option A. =hella. Option B. Brass srews. Option C. =older. Corret Answer is. =older. !"planation. CA#Ps state that adding solder to the metal tiping of the blade is the orret method for horiIontal balane. Brass srews are added for )ertial imbalane on the lightwieght side of the hub.

Question Number. ;. &hih of the following determines oil and grease speifiations for lubriation of propellers9. Option A. Propeller manufaturers. Option B. !ngine Manufaturers. Option C. Airframe manufaturers. Corret Answer is. Propeller manufaturers. !"planation. AC+,1%A.

Question Number. 8/. &hat t(pe of imbalane will ause a two,bladed propeller to ha)e a persistent tenden( to ome to rest in a horiIontal position with the blades parallel to the groundD while being he2ed on a propeller balane beam9. Option A. Harmoni. Option B. ertial. Option C. HoriIontal. Corret Answer is. ertial. !"planation. AC+,1%A.

Question Number. 81. &hat is the purpose of an arbor used in balaning a propeller9. Option A. 'o support the propeller on the balane 2ni)es. Option B. 'o mar2 the propeller blades where weights are to be be attahed. Option C. 'o le)el the balane stand. Corret Answer is. 'o support the propeller on the balane 2ni)es. !"planation. AC+,1%A.

Question Number.

8%.

'he appliation of more proteti)e oating on one blade than another when refinishing a wood propeller.

Option A. has little or no effet on operating harateristis. Option B. ma( be neessar( to ahie)e final balaning. Option C. should ne)er be done. Corret Answer is. ma( be neessar( to ahie)e final balaning. !"planation. N#$.

Question Number. 8*. Apparent engine roughness is often a result of propeller unbalane. 'he effet of an unbalaned  propeller will usuall( be. Option A. greater at high RPM. Option B. greater at low RPM. Option C. appro"imatel( the same at all speeds. Corret Answer is. greater at high RPM. !"planation. AC+,1%A.

Question Number. 8-. Propeller aerod(nami thrustD imbalane an be largel( eliminated b(. Option A. orret blade ontouring and angle setting. Option B. stati balaning. Option C. 2eeping the propeller blades within the same plane of rotation. Corret Answer is. orret blade ontouring and angle setting. !"planation. AC+,1%A.

Question Number. 8+. Option A. fresh water. Option B. soap( water.

Propellers e"posed to salt spra( should be flushed with.

Option C. stoddard sol)ent. Corret Answer is. fresh water. !"planation. AC+,1%A.

Question Number. 8. How an a steel propeller hub be tested for ra2s9. Option A. B( magneti partile inspetion. Option B. B( anodiIing. Option C. B( ething. Corret Answer is. B( magneti partile inspetion. !"planation. AC+,1%A.

Question Number. 88. &hih of the following defets is ause of reEetion of a wood propeller9. Option A. An o)ersiIe hub or bolt hole6 or elongated bolt holes. Option B. =older missing from srew heads seuring metal tipping. Option C. No proteti)e oating on propeller. Corret Answer is. An o)ersiIe hub or bolt hole6 or elongated bolt holes. !"planation. AC-*.1*,1B.

Question Number. 8:. $ongitudinal fore and aftD learane of onstant speed propeller blades or uffs must be at least 14% inh 1%.8 mmD between propeller parts and stationar( parts of the airraft. 'his learane is with the propeller blades. Option A. at the lowest pith angle. Option B. at ta2e,off pith ma"imum thrustD angle. Option C. feathered or in the most ritial pith onfiguration. Corret Answer is. feathered or in the most ritial pith onfiguration. !"planation. 0AR %*.

Question Number. 8;. &hen lubriating a HartIell propeller blade with grease6 to pre)ent damage to the blade seals6 the ser)ie manual ma( reommend on some models to. Option A. remo)e the seals prior to greasing and reinstall them afterwards. Option B. remo)e one of the two grease nipples for the blade6 and grease the blade through the remaining nipple. Option C. pump grease into both grease nipples for the blade simultaneousl(. Corret Answer is. remo)e one of the two grease nipples for the blade6 and grease the blade through the remaining nipple. !"planation. N#$.

Question Number. :/. &hen running,up an engine and testing a newl( installed h(dromati propeller6 it is neessar( to e"erise the propeller b( mo)ing the go)ernor ontrol through its entire tra)el se)eral times to. Option A. remo)e an( entrapped air. Option B. test the ma"imum RPM setting of the go)ernor. Option C. seat the blades full( against the low pith stop. Corret Answer is. remo)e an( entrapped air. !"planation. N#$.

Question Number. :1. &hat is indiated when the front one bottoms while installing a propeller9. Option A. Blade angles are inorret. Option B. Propeller,dome ombination is inorret. Option C. Rear one should be mo)ed forward. Corret Answer is. Rear one should be mo)ed forward. !"planation. AC+,1%A.

Question Number. :%. &hih of the following statements onerning the installation of a new fi"ed,pith wood propeller is true9. Option A. #f a separate metal hub is used6 final tra2 should be aomplished prior to installing the hub in the propeller. Option B. NA= lose,tolerane bolts should be used to install the propeller. Option C. #nspet the bolts for tightness after the first flight and again after the first %+ hours of fl(ing.

Corret Answer is. #nspet the bolts for tightness after the first flight and again after the first %+ hours of fl(ing. !"planation. AC-*.1*,1B.

Question Number.

:*.

#f the propeller one or hub one seats show e)idene of galling and wear6 the most li2el( ause is.

Option A. the propeller retaining nut was not tight enough during pre)ious operation. Option B. the front one was not full( bottomed against the ran2shaft splines during installation. Option C. the pith hange stops were loated inorretl(6 ausing the one seats to at as the high pith stop. Corret Answer is. the propeller retaining nut was not tight enough during pre)ious operation. !"planation. AC+,1%A.

Question Number. :-. On airraft e7uiped with h(drauliall( operated onstant speed propellers6 all ignition and magneto he2ing is done with the propeller in whih position9. Option A. $ow RPM. Option B. High pith range. Option C. High RPM. Corret Answer is. High RPM. !"planation. AC+,1%A.

Question Number. :+. Oil lea2age around the rear one of a h(dromati propeller usuall( indiates a defeti)e. Option A. spider,shaft oil seal. Option B. piston gas2et. Option C. dome,barrel oil seal. Corret Answer is. spider,shaft oil seal. !"planation. N#$.

Question Number.

:.

Ma"imum taper ontat between ran2shaft and propeller hub is determined b( using.

Option A. a mirometer. Option B. a surfae gauge. Option C. bearing blue olour transfer. Corret Answer is. bearing blue olour transfer. !"planation. N#$.

Question Number. :8. Propeller blade tra2ing is the proess of determining. Option A. the plane of rotation of the propeller with respet to the airraft longitudinal a"is. Option B. that the blade angles are within speified tolerane of eah other. Option C. the positions of the tips of the propeller blades relati)e to eah other. Corret Answer is. the positions of the tips of the propeller blades relati)e to eah other. !"planation. AC+,1%A.

Question Number. ::. #n what position is the onstant,speed propeller ontrol plaed to he2 the magnetos9. Option A. 5ull derease6 low propeller blade pith angle. Option B. 5ull inrease6 low propeller blade pith angle. Option C. 5ull inrease6 high propeller blade pith angle. Corret Answer is. 5ull inrease6 low propeller blade pith angle. !"planation. AC+,1%A.

Question Number. :;. #f a flanged propeller shaft has dowel pins. Option A. the propeller an be installed in onl( one position. Option B. he2 arefull( for front one bottoming against the pins. Option C. install the propeller so that the blades are positioned for hand propping. Corret Answer is. the propeller an be installed in onl( one position. !"planation. AC+,1%A.

Question Number. ;/. Repairs of aluminium allo( adEustable pith propellers are not permitted to be made on the. Option A. fae. Option B. shan2. Option C. ba2. Corret Answer is. shan2. !"planation. AC-*.1*,1B.

Question Number. ;1. &hih of the following methods is used to straighten a bent aluminium propeller blade that is within repairable limits9. Option A. !ither hot or old straightening6 depending on the loation and se)erit( of damage. Option B. Cold straightening onl(. Option C. Careful heating to aomplish straightening6 followed b( heat treatment to store original strength. Corret Answer is. Cold straightening onl(. !"planation. AC-*.1*,1B.

Question Number.

;%.

#t is important that ni2s in aluminium allo( propeller blades be repaired as soon as possible in order to.

Option A. maintain e7ual aerod(nami harateristis between blades. Option B. eliminate stress onentration points. Option C. e7ualiIe the entrifugal loads between the blades. Corret Answer is. eliminate stress onentration points. !"planation. AC-*.1*,1B.

Question Number. ;*. Minor surfae damage loated in a repairable area6 but not on the leading or trailing edges of aluminium  blades6 ma( be repaired b( first. Option A. filing with a half round or flat file. Option B. sanding and appl(ing a proper filler. Option C. filing with a riffle file.

Corret Answer is. !"planation. N#$.

filing with a riffle file.

Question Number. ;-. Minor surfae damage loated in a repairable area6 but not on the leading or trailing edges of omposite  blades6 ma( be repaired b(. Option A. filing with a riffle file. Option B. sanding and appl(ing a proper filler. Option C. filing with a half round or flat file. Corret Answer is. sanding and appl(ing a proper filler. !"planation. N#$.

Question Number. ;+. After remo)al of aluminium blade damage6 the affeted surfae should be polished with. Option A. fine steel wool. Option B. )er( fine sandpaper. Option C. powdered soapstone. Corret Answer is. )er( fine sandpaper. !"planation. AC-*.1*,1B.

Question Number. ;. &hen preparing a propeller blade for inspetion it should be leaned with. Option A. mild soap and water. Option B. steel wool. Option C. meth(l eth(l 2etone. Corret Answer is. mild soap and water. !"planation. AC+,1%A.

Question Number. ;8. &hat method would (ou use to inspet an aluminium propeller blade when a ra2 is suspeted9. Option A. (e penetrant inspetion.

Option B. Magneti partile inspetion. Option C. A bright light and magnif(ing glass. Corret Answer is. (e penetrant inspetion. !"planation. AC-*.1*,1B.

Question Number.

;:.

Remo)al of propeller blade tips within the '(pe Certifiate ata =heet limits to orret a defet is.

Option A. a maEor repair. Option B. permitted under the pri)ileges and limitations of a ategor( B1 liene. Option C. a maEor modifiation. Corret Answer is. a maEor repair. !"planation. N#$.

Question Number. ;;. &hih of the following generall( renders an aluminium allo( propeller unrepairable9. Option A. A trans)erse ra2 of an( siIe. Option B. An( slag inlusions or old shuts. Option C. An( repairs that would re7uire shortening and re,ontouring of blades. Corret Answer is. A trans)erse ra2 of an( siIe. !"planation. AC-*.1*,1B.

Question Number. 1//. &hat is the aeptable amount of ushion in a go)ernor ontrol le)er9. Option A. 14: inh. Option B. *4: inh. Option C. 14- inh. Corret Answer is. 14: inh. !"planation. N#$.

17.7 Propeller Storage and Preser"ation.

Question Number. 1. Rubber omponents should be stored in. Option A. the dar2. Option B. natural light. Option C. flouresent light. Corret Answer is. the dar2. !"planation. N#$.

Question Number. %. 'he ma"imum storage periods for installed propellers are detailed in the. Option A. propeller o)erhaul and repair manual. Option B. Airworthiness Noties. Option C. airraft Maintenane Manual. Corret Answer is. airraft Maintenane Manual. !"planation. N#$.

Question Number. *. &hen storing wooden propellers. Option A. store in a dr( well )entilated and illuminated loation. Option B. store in a horiIontal position. Option C. wrap in greaseproof paper. Corret Answer is. store in a horiIontal position. !"planation. 0epperson AP Powerplant Page 1%,+- refers.

Question Number. -. A wooden propeller should be stored. Option A. a dr( and well )entilated area.