www.easaquestionpapers.blogspot.com Module 06. Materials & Hardware
01a. Aircraft Materials - Ferrous.
Question Number. 1. When drilling st stainless st steel, us use a. Opti Option on A. drill rill grou ground nd to 120 °, slow slow cut cutting ting spee speed d. Opti Option on B. drill rill grou ground nd to 0 °, °, !as !astt cut cutti ting ng spee speed. d. Opti Option on ". drill rill grou ground nd to 0 °, °, slo slow w cut cutti tin ng spee speed d. "orr "orrec ectt Ans Answe werr is. is. dril drilll gro groun und d to to 120 120 °, slow slow cutt cuttin ing g spe speed ed.. #$planation. N%&.
Question Number. 2. 'ow is a material gal(anised). Option A. *pra+e a+ed with ith nicel sol solution ion. Opti Option on B. -ac -aced ed in a dru drum m cont contai aini ning ng inc inc dust dust and and hea heate ted. d. Option ". /ipped in a bath o! molte olten n inc. "orre orrecct Ans Answe werr is. is. /ipp ipped in a ba bath o! mol molte ten n in inc. c. #$planation. N%&.
Question Number. . What temperature would steel be tempered at). Option A. At the annealing ing temp emperatur ture. Option B. B. Abo(e th the an annealin ling tem temp perature. Option ". Below low th the an annealing tem temperatur ture. "orr "orrec ectt Answe nswerr is. is. Belo Below w the the anne anneal alin ing g tem tempera peratu ture re.. #$planation. N%&.
Question Number. . empering steel gi(es. Option A. greater brittleness. Option B. greater hardness. Opti Option on ". reli relie! e! o! inte intern rnaal str stres esss a! a!ter ter har hard denin ening. g. "orr "orrec ectt Ans Answe werr is. is. reli relie! e! o! inte intern rnal al str stres esss a!te a!terr har harde deni ning ng.. #$plan #$planatio ation. n. emp emperi ering ng is is done done to relie( relie(ee inter internal nal stresse stresses. s.
Question Number. 3. he addition o! chromium to steel will produce. Option A. toughness. Option B. hardness. Option ". ". ductilit+. "orrect Answer is. hardness. #$plan #$planatio ation. n. "hromi "hromium um is allo+ allo+ed ed with with steel steel to mae mae it harder harder..
Question Number. 4. "hromium added to plain carbon steel. Opti Option on A. inc increas reases es it5s it5s resi resist stan ance ce to corr corro osio sion. Option B. B. turns it it in into a no non6!errous al allo+. o+. Option ". maes the metal so!ter. "orr "orrec ectt Ans Answe werr is. is. incr increa ease sess it5 it5ss res resis ista tanc ncee to to cor corro rosi sion on.. #$planation #$planation.. "hromium, "hromium, when added to steel steel increa increases ses its its hardnes hardnesss and corrosion corrosion resistance resistance 7hence 7hence "8*9. Share your documents with us at (
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Question Number. :. he purpose o! case hardening is to. Option A. produce a hard ca case o(er a to tough co core. Option B. reduce the carbon in the steel. Option ". intro troduce carbon int into the steel. "orr "orrec ectt Ans Answe werr is. is. prod produc ucee a hard hard case case o(er o(er a tou tough gh core core.. #$plan #$planatio ation. n. "ase "ase harden hardening ing harden hardenss the sur!ac sur!acee onl+. onl+.
Question Number. ;. At no normal te temperatures '" '" steel is ha harder because. Option A. it has more austenite. Option B. o! th the < o! o! carbon in the granules. les. Option ". it has less austenite. "orr "orrec ectt Answe nswerr is. is. o! the the < o! o! car carbo bon n in in the the gran granul ules es.. #$planation. N%&.
Question Number. . Nitriding is. Option A. A. tempering. Option B. anodising. Option ". case hardening. "orrect An Answer is is. case ha hardening. #$pla #$plana natio tion. n. Nitr Nitrid idin ing g is a !or !orm m o! cas casee hard harden enin ing. g.
Questio tion Number. 10. =edium ium carbon stee teels ha(e a carbon content o!. Option A. 0. 6 0.3 err >errou ous5 s5 is is !rom !rom the the &at &atin in !or !or iro iron. n.
Ques Questi tion on Num Number. er. 12. With resp respec ectt to to !err !erro ous metal etalss whi which ch o! th the !o !ollow llowin ing g is true true). ). Opti Option on A. %ro %ron is is not not an+ an+ ele elem ment ent o! o! !er !erro rous us metal etals. s. Opti Option on B. %ron %ron is a main main elem elemen entt and and most ost !err !errou ouss met metal al are are mag magne neti tic. c. Opti Option on ". %ron %ron is a main main elem elemen entt and and !err !errou ouss met metal alss are are not not mag magne neti tic. c. "orr "orrec ectt Ans Answe werr is. is. %ron %ron is a main main elem elemen entt and and mos mostt !err !errou ouss meta metall are are magn magnet etic. ic. #$plan #$planatio ation. n. he &ati &atin n !or iron iron is 5>err 5>errum5 um5 >err >errous ous metal metalss are named named thus thus,, and most most are are paramagnetic with the e$ception o! some stainless steels.
Ques Questi tion on Num Number. er. 1. he he ann anneali ealing ng proce rocess ss on stee steell is re? re?uired ired som sometim etimes es as it. it. Opti Option on A. pro( pro(id ides es a corr corros osion ion resis resista tant nt la+er la+er that that pre( pre(en ents ts o$id o$idat ation ion.. Share your documents with us at (
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www.easaquestionpapers.blogspot.com Opti Option on B. allo allows ws the the mat mater eria iall a grea greate terr str stres esss per per unit unit area area.. Opti Option on ". relie relie(e (ess int inter erna nall str stres esss su! su!!e !ere red d a!te a!terr engi engine neer erin ing g proc proces esse ses. s. "orr "orrec ectt Ans Answe werr is. relie relie(e (ess inter interna nall stress stress su! su!!e !ere red d a!te a!terr engin enginee eeri ring ng pro proce cesse sses. s. #$plan #$planatio ation. n. Anneal Annealing ing is to relie( relie(ee intern internal al stresse stresses. s.
Ques Questi tion on Num Number. er. 1. "obal obaltt stee steell test tested ed on the the Brinel inelll tes testt wou would ha(e a(e a B'N B'N numbe umberr between. Option A. 100 to 1:3. Option B. 00 to 00. Option ". 400 to :00. "orrect Answer is. 400 to :00. #$planation #$planation.. "obalt "obalt steel steel 7used 7used in cobalt cobalt drills9 drills9 has has a (er+ high hardness hardness 74006:00 74006:00 B'N or or 40643 40643 8ocwell "9. B&@106.
Ques Questi tion on Num Number. er. 13. %! a mater ateria iall is is !ou !ound nd to be in in th the ter terttiar+ iar+ phas phasee o! o! cre creep ep the the !ol !ollo low wing ing procedure should be implemented. Opti Option on A. he he comp compon onen entt shou should ld und under er go go d+e d+e pene penetr tran antt proc process ess and and cond condit itio ion n moni monitor tored ed.. Opti Option on B. he he cra crac c shou should ld be stop stop drill drill,, con condi ditio tion n mon monito itori ring ng shou should ld be appl applie ied. d. Opti Option on ". he he com compone ponent nt shou should ld be repl replac aced ed imme immedi diat atel el+ +. "orr "orrec ectt Answe nswerr is. is. he he com compo pone nent nt shou should ld be repl replac aced ed imme immedi diate atel+ l+.. #$planation #$planation.. he tertiar+ tertiar+ phase phase o! creep creep occurs occurs ust ust be!ore be!ore complete complete !ailure !ailure o! the the componen component. t. B&@106 .11..
Question Number. 14. What is is us used !o !or ma maring out st steels). Option A. #ngineers blue. Option B. Wa$ cra+on. Option ". "opper sulphate. "orrect Answer is. "opper sulphate. #$planation #$planation.. "opper "opper sulphate sulphate is used used !or !or maring maring steel. steel. Worshop orshop echno echnolog+ log+ -art 1 -g 20. 20.
Ques Questi tion on Num Number. er. 1:. -hos -hosp phati hating ng o! stee steels ls is carr carrie ied d ou out b+ b+ imm immersi ersing ng the stee steell in in to to a solution o!. Opti Option on A. phosp hospho hori ricc acid acid and and metal etal phosp hospha hate tes. s. Option B. B. nitric ac acid an and su sulphur. Opti Option on ". metal etal phosp hospha hate tess and sulp sulph huric uric acid acid.. "orr "orrec ectt Ans Answe werr is. is. phos phosph phor oric ic acid acid and and met metal al phos phosph phat ates es.. #$pl #$plan anat atio ion n. "A%"A%-ss B&@: B&@:6 6 1.1 1.1..
Question Number. 1;. empering entails. Opti Option on A. heati eatin ng und under er the C"C"- and and slo slow co coolin oling. g. Opti Option on B. heati eatin ng o(er o(er the the C" C"- and and !ast !ast coo cooling ling.. Opti Option on ". heati eatin ng o(er o(er the the C" C"- and and slow slow coo coolin ling. "orr "orrec ectt Ans Answe werr is. is. heat heatin ing g und under er the the C"C"- and and slow slow cool coolin ing. g. #$planation #$planation.. o temper steel, heat to B#&OW B#&OW the &ower &ower "ritical "ritical emper emperature ature 7&"9 7&"9 and cool either slowl+ or ?uench in water.
Question Number.
1.
Austenitic stainless steels are.
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www.easaquestionpapers.blogspot.com Option A. magnetic. Option B. non6magnetic. Option ". hardened b+ b+ heat tr treatment. "orrect An Answer is is. non6magnetic. #$plan #$planatio ation. n. Austen Austenitic itic stainl stainless ess steel steel is non6ma non6magne gnetic tic..
Question Nu Number. 20. he !o !ormation o! o! st steel de depends up upon. Opti Option on A. the the !or !orm matio ation n o! o! pea pearl rlit itee in into aust austen enit ite. e. Opti Option on B. the the !or !orm matio ation n o! o! aus auste teni nite te into into pea pearlit rlite. e. Opti Option on ". the the pre prese senc ncee o! o! pea pearl rlit itee in in the the stru struct ctu ure. re. "orr "orrec ectt Ans Answe werr is. is. the the !or !orm matio ation n o! o! aust austen enit itee into into pea pearl rlit ite. e. #$plan #$planatio ation. n. Austen Austenite ite e$ists e$ists abo( abo(ee the &" &" and turns turns into into pearl pearlite ite as the the steel steel cools cools..
Ques Questi tion on Num Number. er. 21. 'ow is resid esidua uall magne agneti tism sm remo( emo(ed ed a!ter !ter an N/ N/ e$am e$amin inat atio ion n). Option A. #=%. Option B. #=". Option ". /egaussing. "orrect Answer is. /egaussing. #$plan #$planatio ation. n. /egauss /egaussing ing is ano anothe therr name name !or demagn demagneti etising sing..
Question Number. 22. he hardness o! steel de depends up upon. Opti Option on A. !orm !ormat atio ion n o! pear pearli lite te into into aust austen enit ite. e. Option B. B. !ormation o! o! ce cementite. Option ". ". the ir iron au austen tenite gr grain st structure. "orre orrecct Answe nswerr is. is. !orm !ormat atio ion n o! cem cementi entite te.. #$planation #$planation.. "ementite "ementite 7iron 7iron carbid carbide9 e9 is the hard hard grain grain structu structure re that that precipita precipitates tes !rom !rom the the austenite austenite as high carbon steel cools !rom abo(e the C".
Questio tion Nu Number. 2. he di di!!erence be betwe tween an annealin ling an and no norma rmalii iing is is. Opti Option on A. both both are are hea heated ted abo( abo(ee the the C" C", coo cooll slow slowl+ l+ to to anne anneal al,, cool cool in in air air to norm normali alie e.. Opti Option on B. B. both both are are hea heated ted below below the the C" C", coo cooll in air air to to anne anneal al,, cool cool slo slowl+ wl+ to nor norma mali lie. e. Opti Option on ". ". both both are are hea heated ted abo( abo(ee the the C" C", coo cooll in air air to to anne anneal al,, cool cool slo slowl+ wl+ to nor norma mali lie e.. "orr "orrec ectt Ans Answe werr is. is. both both are are hea heate ted d abo( abo(ee the the C" C", coo cooll slow slowl+ l+ to to anne anneal al,, cool cool in in air air to normalie. #$planation #$planation.. Both are heated heated abo(e the C", C", but the the onl+ onl+ di!!er di!!erence ence is, cool cool slowl+ slowl+ 7in 7in the the !urnace9 to anneal, cool in air to normalie.
Question Number. 2. Normaliing o! steel is done to. Opti Option on A. rem remo(e o(e res resid idua uall str stres esss o! o! the the manu! anu!ac actu turi ring ng proc proces ess. s. Option B. mae steel so!ter. Option ". restore the !a !atigu igue li li!e o! st steel. "orr "orrec ectt Ans Answe werr is. is. remo remo(e (e resid residua uall stre stress ss o! o! the the manu manu!a !act ctur urin ing g pro proces cess. s. #$planation. N%&.
Question Number. 23. When normalising, the ma material is is. Option A. A. ?uenched im immediatel+. Option B. le!t to to cool in in room temp emperature. Share your documents with us at (
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www.easaquestionpapers.blogspot.com Option ". cooled slowl+. "orr "orrec ectt Answe nswerr is. is. le!t le!t to cool cool in room room tem tempera peratu ture re.. #$pla #$plana natio tion. n. "ool "ool in air air when when norm normali alisin sing. g.
Question Number. 24. "ast iron is. Option A. (er+ malleable. Option B. tough. Option ". hea(+ and brittle. "orrect Answer is. hea(+ and brittle. le. #$planation. N%&.
Question Number. 2:. "ase ha hardening can be ca carried out on on. Option A. titanium. Option B. an+ !errous metal. Option ". duralumin. "orrect Answer is. an+ !errous metal tal. #$planation. N%&.
Ques Questi tion on Num Number. er. 2;. #$hau $haust st s+st s+stem emss are are usua suall+ ll+ made ade !rom !rom stain tainle less ss stee steell whic which h is susceptible to. Option A. sur!ace corrosion. Option B. B. !ili!orm co corrosion. Option ". intergranular corrosion. "orre orrecct Ans Answe werr is. is. inte interg rgrranu anular lar cor corro rosi sio on. #$planation. N%&.
Ques Questi tion on Num Number. er. 2. When hen met metal al is !irs !irstt hea heate ted d sli sligh ghtl tl+ + abo abo(e (e its its cri criti tica call tem temp perat eratu ure and and then cooled rapidl+ it is common that the metal will i ncrease in. Option A. brittleness. Option B. both o! the abo(e. Option ". hardness. "orrect Answer is. both o! the abo(e. #$plan #$planatio ation. n. his his is the proces processs o! o! harde hardenin ning g 7!er 7!errou rous9 s9 metal metals. s.
Question Number. 0. *teel is tempered. Option A. a!ter ha hardening. Option B. be!ore hardening. Option ". to increase hardening. "orrect Answer is. a!ter hardening. #$plan #$planatio ation. n. emp emperi ering ng is to to reduce reduce the the britt brittlen leness ess cause caused d b+ harde hardenin ning. g.
Ques Questi tion on Num Number. er. 1. %! a stee steell com compo pon nent ent is is ope opera rate ted d bel belo ow the the !ati !atigu guee lim limit it.. h he !at !atig igu ue li!e is. Option A. !inite. Option B. in!inite. Option ". depend on its proo! stress. Share your documents with us at (
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www.easaquestionpapers.blogspot.com "orrect Answer is. #$pla #$plana natio tion. n. N%&. N%&.
in!inite. http http@ @@m @meta etals ls.a .abo bout ut.c .com om@li @libr brar+ ar+@b @bld lde! e!6> 6>at atig igue ue6& 6&im imit it.h .htm tm
Questio tion Nu Number. 2. A low ca carbon st steel wo would norma rmall+ be ca case ha hardened us using ing. Option A. the nitriding process. Option B. !lame ame or ind inductio tion hardening ing. Option ". pac or or ga gas ca carburising. "orre orrecct Answe nswerr is. is. pac ac or gas carbu arburrisin ising g. #$pla #$plana natio tion. n. N%&. N%&. http http@ @@ww @www w.e!un e!unda da.c .com om@p @pro roce cess sses es@he @heat atDt Dtre reat at@h @har arde deni ning ng@d @di! i!!u !usi sion on.c .c!m !m
Ques Questi tion on Num Number. er. . A!ter !ter a pro produ duct ct has has bee been n manu! anu!ac actu ture red d and and all heat heat trea treatm tmen entt has has been carried out the stress remaining i! an+ is termed termed as. Option A. residual stress. Option B. woring stress. Option ". applied stress. "orrect Answer is. residu idual str stress. ss. #$pla #$plana natio tion. n. N%&. N%&. http http@ @@ww @www w.ph+si? ph+si?ue uein indu dust stri rie. e.com com@r @res esidu idual alDs Dstr tres ess. s.ph php p
Question Number. . Annealing steels. Option A. toughens the metal. Option B. maes the metal malleable. Option ". maes th the me metal br brittle. "orre orrecct Ans Answe werr is. is. maes aes the metal etal malle alleab able le.. #$plan #$planatio ation. n. AE- echni echnicia cian n Fener Feneral al e$ e$tbo tboo o "hap "hap : page page . .
Questio tion Number. 3. empering ing o! hardened steel is carried out to. Opti Option on A. reta retain in sur! sur!ac acee har hard dness ness,, bu but so!t so!ten en the the co core. Opti Option on B. reta retain in core core hard hardn ness, ess, but but so so!ten !ten the the su sur!ac r!ace. e. Opti Option on ". ". signi signi!i !ica cant ntl+ l+ red reduc ucee the the brit brittle tlene ness ss witho without ut su! su!!e !eri ring ng a mao maorr drop drop in in its its stren strengt gth. h. "orrec "orrectt Answ Answer er is. is. signi! signi!ica icantl+ ntl+ reduce reduce the brittl brittlene eness ss witho without ut su!! su!!eri ering ng a maor maor drop drop in in its its strength. #$planation. N%&.
Ques Questi tion on Num Number. er. 4. 'igh igh sp speed eed ste steeel rel reliies hea( hea(il il+ + on on the the !ollo ollow wing ing met metaallic llic elem lement ent !o !or its abilit+ to cut other metals, e(en when it is heated to a dull red colour. Option A. ungsten. Option B. Nicel. Option ". Ganadium. "orrect Answer is is. ungsten. #$planation. N%&.
Ques Questi tion on Num Number. er. :. When hen a low low carb carbon on stee steell bol boltt is is str streetch tched be+on e+ond d its its elas lastic tic lim limit it without breaing, it will. Option A. de!orm temporaril+. Option B. become mo more du ductile. Option ". de!orm permanentl+. "orrect An Answer is is. de!orm perma rmanentl+. l+. Share your documents with us at (
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www.easaquestionpapers.blogspot.com #$planation.
N%&.
Question Nu Number. ;. 1< Ni Nicel, 1< 1< "a "arbon, st steel is is wi widel+ used !o !or. Option A. e$haust (al(es. Option B. ball and roller bearings. Option ". ". high te tensile st steel bo bolts. "orre orrecct Answe nswerr is. is. ball all an and ro roller ller beari earing ngss. #$planation. N%&.
Question Number. . >atigue !ailure ma+ be de!ined as. Opti Option on A. !ail !ailur uree cau cause sed d b+ stre stress ss in in e$c e$ces esss o! o! the the mate materi rial al C. C..*. Option B. !ailure due to impact. Opti Option on ". redu reduct ctio ion n in stre streng ngth th due due to alte altern rnat atin ing g load loads. s. "orr "orrec ectt Answe nswerr is. is. redu reduct ctio ion n in stre streng ngth th due due to to alte altern rnat atin ing g loa loads. ds. #$planation. N%&.
Question Nu Number. 0. Normalising st steels. Option A. increases toughness. Option B. B. increases th the ha hardness. Option ". relie(es the stresses. "orre orrecct Answe nswerr is. is. reli relie( e(es es the the stre stress sses es.. #$planation. N%&.
Question Number. 1. "ast iron is. Option A. tough. Option B. hea(+ and brittle. Option ". (er+ malleable. "orrect Answer is. hea(+ and brittle. le. #$planation. N%&.
Ques Questi tion on Num Number. er. 2. Auste usteni niti ticc stee steell is prod produc uced ed when when the mater ateria iall is heate eated d to. to. Option A. abo(e the the Cpper "ritic tical -oin -ointt. Option B. abo(e the the &ower "ritic tical -oin -ointt. Option ". below low the Cpper "ritica ical -oint int. "orre orrecct Ans Answe werr is. is. abo( abo(ee th the Cp Cpper per "ri "riti tica call -oin -oint. t. #$planation. N%&.
Ques Questi tion on Num Number. er. . *tee *teell is is pro produ duce ced d b+ re!i re!ini ning ng pig iro iron whe where re air@ air@o$ o$+ +gen is blo blown through the molten material to remo(e. Option A. carbon. Option B. o$ides. Option ". sulphur. "orrect An Answer is is. carbon. #$pla #$plana natio tion. n. Air Air is to to 5dec 5decar arbu buri rise se55 the the pig pig iron iron.. http@@www.bsu.edu@web@
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www.easaquestionpapers.blogspot.com Ques Questi tion on Num Number. er. . /urin uring g a 8oc 8ocwe well ll 'ard 'ardne ness ss test test,, wha whatt dim dimensi ensio on is measu easurred). ed). Option A. he diameter o! the indent. Option B. he depth o! the indent. Option ". ". he dia diam meter ter an and de depth o! th the in indent. "orre orrecct Answe nswerr is. is. he he dep depth o! the the inde indent nt.. #$pla #$plana natio tion. n. N%&. N%&. http http@ @@ww @www w.?cpl ?cplus us.c .co. o.u u@tr @trai aini ning ng@t @tra rain inin ing6 g6ro roc cwe well ll.h .htm tm
Question Number. 3. What does the 0 in 2026 mean). Opti Option on A. he he pe percen rcenta tage ge o! im impur puritie itiess in in the the allo+ llo+.. Option B. he allo+ lo+ has not been modi!ied ied. Option ". he allo+ has be been modi!ied. "orr "orrec ectt Answe nswerr is. is. he he allo allo+ + has has not not been been modi! odi!ie ied. d. #$pla #$plana natio tion. n. N%&. N%&. http http@ @@ww @www w.tr trai ain. n.co com@ m@(m (ms@e s@eng ngin inee eeri ring ngDm Dmeta etalD lDstd stds. s.htm htmlH lH4 4
Ques Questi tion on Num Number. er. 4. %n mos mostt air aircr cra! a!tt h+ h+drau drauli licc s+ s+stem stems, s, two6 two6p piece iece tube tube conn connec ecto tors rs consisting o! a slee(e and a nut are used when a tubing !lare is re?uired. he use o! this t+pe o! connector eliminates. Opti Option on A. the the !la !lari ring ng oper operat atio ion n pri prior or to ass assem embl bl+ +. Opti Option on B. B. the the poss possib ibil ilit+ it+ o! red reduc ucin ing g the the !lar !laree thic thicne ness ss b+ wipi wiping ng or or iron ironin ing g duri during ng the the tightening process. Opti Option on ". wren wrench ch dam damag agee to the the tubi tubing ng dur durin ing g the the tigh tighte teni ning ng proc proces ess. s. "orrec "orrectt Answ Answer er is. is. the possib possibilit+ ilit+ o! redu reducin cing g the the !lar !laree thic thicnes nesss b+ wiping wiping or ironin ironing g duri during ng the tightening process. #$planation #$planation.. With With the two6piece two6piece !itting !itting 7AN;1;9 7AN;1;9 there there is no relati( relati(ee motion motion between between the !itting !itting and the !lare when the nut is being tightened. 01b. Aircraft Materials - Ferrous.
Question Number. 1. %n the tensile strength test. Opti Option on A. the the mat mater eria iall is is pul pulle led d to to lim limit it o! elas elastticit icit+ +. Opti Option on B. the the mater ateria iall is is pul pulle led d to to un until til it it bre brea as. s. Opti Option on ". the the mat mater eria iall is is pul pulle led d un until til it it rea reach ches es its its C* C*.. "orr "orrec ectt Ans Answe werr is. is. the the mat mater eria iall is is pul pulle led d to to unt until il it it bre brea as. s. #$plan #$planatio ation. n. he materia materiall is is test tested ed to !ull !ull dest destruc ructio tions. ns.
Question Number. 2. %mpact resistance measures the. Option A. A. material to toughness. Option B. material hardness. Option ". ". material du ductilit+. "orrect An Answer is is. mate aterial to toughness. ss. #$pla #$plana natio tion. n. oughn ughnes ess5 s5 is is resi resista stanc ncee to impa impact. ct.
Questio tion Nu Number. . *peci! ci!ied ied tim timee o! o! co contac tact be between th the in indentor tor an and te test piec iece in in a (icers or brinell hardness test is. Option A. 20 seconds. Option B. 10 seconds. Option ". 13 seconds. "orrect An Answer is is. 13 se seconds. Share your documents with us at (
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www.easaquestionpapers.blogspot.com #$pl #$plan anat atio ion. n.
"A%"A%-ss B&@ B&@10 106 6 3.2. 3.2.;. ;.
Questio tion Number. . %n an %od imp impact te test th the str striiing ing energ+ o! the strie ier is appro$imatel+. Option A. 130 I. Option B. 14 I. Option ". 00 I. "orrect Answer is. 14 I. #$pl #$plan anat atio ion. n. "A%"A%-ss B&@1 B&@106 06 4.2. 4.2.
Question Number. 3. he "harp+ test measures. Option A. strain. Option B. impact en energ+. Option ". Joung5s modulus. "orrect An Answer is is. impact en energ+. g+. #$planation. N%&.
Ques Questi tion on Num Number. er. 4. he he 5>at 5>atig igue ue lim limit5 it5 !or !or stee steell is gen general erall+ l+ in the the reg region ion o!, compa ompare red d to the static C..*. C..*. Option A. 0ollow owin ing g so soluti lutio on tr treatm eatmen entt alu alum miniu inium m all allo+ o+ can can be be pla place ced d in into ser(ice. Option A. a!ter 3 da+s. Option B. straight aw awa+. Option ". a!ter 2 hours. "orrect Answer is. a!ter 3 da+s a+s. #$plan #$planatio ation. n. >ull >ull hardn hardness ess is achi achie(e e(ed d a!ter a!ter 63 63 da+s. da+s. "A%-s "A%-s B&@ B&@61 61 -ara -ara :.
Questio tion Nu Number. 3. he tim timee be between rem remo o(al !r !rom heat tr treatme tment !u !urnace an and ?uenching must be not more than. t han. Option A. seconds. Option B. 10 seconds. Option ". : seconds. "orrect An Answer is is. 10 se seconds. #$plan #$planatio ation. n. Ieppes Ieppesen en AEAE- e echnicia chnician n Air!r Air!rame ame e$ e$tbo tboo o -age -age 26. 26.
Ques Questi tion on Num Number. er. 4. When hen bu bu!!in !!ing g su sur!ac r!acee o! o! Alum luminiu inium m Allo+ llo+,, what what mater ateria iall are are +ou remo(ing). Option A. O$ide la+er. Option B. Aluminium. Option ". Allo+. "orrect Answer is. O$ide la+e a+er. #$planation #$planation.. -olishing -olishing al.allo+ al.allo+,, pure pure al. al. or Alclad, Alclad, +ou +ou would would be remo(ing remo(ing the the o$ide o$ide la+er. la+er.
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www.easaquestionpapers.blogspot.com Questio tion Number. :. Wh+ is clad lad allo+ pre!erred to pure Aluminiu inium m). Option A. &ess brittle. Option B. =ore ductile. Option ". ougher. "orrect Answer is. ougher. #$planation #$planation.. he importan importantt !actor !actor is that clad clad alumini aluminium um allo+ allo+ is 0< alumin aluminium ium allo+ allo+.. he he !act !act that it is clad is irrele(ant.
Ques Questi tion on Num Number. er. ;. Wh+ are alum alumin iniu ium m allo+ llo+ss used used on airc ircra!t ra!t,, inst instea ead d o! pure pure aluminium). Option A. *tronger. Option B. "orrosion resistant. Option ". &ighter. "orrect Answer is is. *tronger. #$planation. N%&.
Ques Questi tion on Num Number. er. . he he magne agnesi sium um allo allo+ +s use used d in airc aircra ra!t !t can can be reco recogn gni ied ed b+. b+. Opti Option on A. shin shin+ + sur! sur!ac acee due due to chro chrom mium ium plat plated ed on the the sur sur!a !ace ce.. Opti Option on B. +ello ellowi wish sh sur! sur!ac acee due due to prot protec ecti ti(e (e trea treatm tmen ent. t. Opti Option on ". sil( sil(er er sur! sur!ac acee du due to to pro prote teccti(e ti(e coat coatin ing g. "orr "orrec ectt Answe nswerr is. is. +ello +ellowis wish h sur sur!a !ace ce due due to to prot protec ecti( ti(ee tre treat atme ment nt.. #$planation. N%&.
Question Nu Number. 0. Age ha hardening o! o! al aluminium is is. Option A. ne(er carried out. Opti Option on B. a gra gradu dual al hard harden enin ing g o(e o(err a perio eriod d o! o! tim time. e. Option ". not necessar+. "orrect Answer is. ne(er carried out. #$planation #$planation.. Aluminium Aluminium will will not not age age harden harden lie aluminium aluminium allo+s allo+s such as dural dural as as there there ars ars no allo+ing elements such as copper that will come out o! solution o(er time.
Question Number. 1. Alclad is. Option A. A. alumi uminium wit with h du duralum lumin cladding. Option B. B. duralum lumin wi with aluminium coating ing. Option ". ". duralum lumin wi with magn agnesiu sium cl cladding. "orr "orrec ectt Answe nswerr is. is. dura duralu lumi min n wit with h alum alumin iniu ium m coat coatin ing. g. #$planation. N%&.
Question Nu Number. 2. he o$ o$ide !i !ilm on on th the su sur!ace o! o! al aluminium is. Option A. hard and porous. Option B. porous. Option ". non porous. "orrect An Answer is is. non po porous. #$planation. N%&.
Ques Questi tion on Num Number. er. allo+ is.
.
he he pro proce cess ss o! !orm orming ing a pure ure la+ la+er er o! alu alum miniu inium m o(er o(er an alum alumin iniu ium m
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www.easaquestionpapers.blogspot.com Option A. metaliing. Option B. cladding. Option ". electroplating. "orrect Answer is. cladding. #$planation. N%&.
Ques Questi tion on Num Number. er. . itan tanium ium can can be iden identi ti!i !ied ed b+ plac lacing ing it it on on a gri grin nding ing whe wheeel and and looing !or. Option A. 8ed *pars. Option B. Jellow *pars. Option ". White *pars. "orrect Answer is. White *pars. #$planation. N%&.
Question Number. 3. he critical pr process o! heat treatme tment is. Opti Option on A. tem tempera peratu ture re,, met meth hod o! hea heati tin ng an and coo cooli lin ng. Opti Option on B. tem tempera peratu ture re and and metho ethod d o! o! hea heating ting onl+ onl+.. Option ". method o! heating onl+. "orr "orrec ectt Answe nswerr is. is. tempe tempera ratu ture re,, meth method od o! heat heatin ing g and and cool coolin ing. g. #$planation. N%&.
Questio tion Nu Number. 4. 8e6treatme tment o! o! al alumi uminium allo+ lo+s ca can be be pe per!ormed b+ b+. Option A. alocrom treatment. Opti Option on B. brus brushi hing ng on phos phosph phat atee tre treat atm ment ent !ol !ollo lowe wed d b+ b+ pain paint. t. Option ". selenious acid treatment. "orrect An Answer is is. alocrom tr treatmen tmentt. #$planation. N%&.
Question Number. :. What is is ge generall+ true !o !or titanium allo+). Option A. %t is is st stronger th than th the al alumin uminiu ium m. Option B. %t is is st stronger th than th the st steel. Option ". ". %t ha has lo lower de densit+ than ma magnesiu sium. "orr "orrec ectt Answe nswerr is. is. %t is stro strong nger er than than the the alu alumi mini nium um.. #$pl #$plan anat atio ion. n. N%&. N%&. http http@ @@w @www ww..geoc geocit itie ies. s.co com m@pga @pgani nio@ o@ma mate teri rial als. s.ht htm ml
Question Number. ;. =alleable materials are. Option A. eas+ to !orge. Option B. eas+ to cast. Option ". highl+ ductile. "orrect Answer is. eas+ to !orge. #$plan #$planatio ation. n. =allea =alleabil bilit+ it+ does does not not neces necessar saril+ il+ mean mean ductil ductilit+ it+..
Ques Questi tion on Num Number. er. . essential propert+ would be. Option A. ductilit+. Option B. B. malleabilit+. Option ". elasticit+.
%! a mater ateria iall has to unde ndergo deep deep cold cold !orm !ormin ing g opera perati tio on. he he
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www.easaquestionpapers.blogspot.com "orrect An Answer is is. #$planation. N%&.
malleabilit+. t+.
Questio tion Number. 30. he metal wh which must not be heated in a salt bath is. is. Option A. magnesium al allo+. Option B. duralumin. Option ". ri(ets made o! alclad. "orrect Answer is. magn agnesium ium allo+ llo+.. #$planation. N%&.
Question Number. 31. he colour code on sheet metal indicates. Opti Option on A. onl+ nl+ the the spec specii!ica !icati tion on o! the the mater ateria ial. l. Option B. the spe spec and ga gauge o! o! th the ma mater terial. Opti Option on ". tha that th the mat mater eria iall is is !ro !rom m an an app appro ro(e (ed d sou sourrce. ce. "orrec "orrectt Answ Answer er is. is. that that the the mater material ial is !rom !rom an appro( appro(ed ed source source.. O8 onl+ onl+ the the spec speci!i i!icat cation ion o! the the material. #$planation. N%&.
Ques Questi tion on Num Number. er. 32. When hen two two or more ore metal etalli licc mater ateria ials ls are are !use !used d tog togethe etherr, the the combination is nown as. Option A. a composite material. Option B. a thermosetting compound. Option ". an allo+. "orrect Answer is. an allo+. #$pl #$plan anat atio ion. n. >use >use mean meanss 5to 5to melt melt5. 5.
Question Number. 3. =alleable ma materials ar are normall+. Option A. also hi highl+ ductile. Option B. eas+ to cast. Option ". easil+ !orged. "orrect An Answer is is. easil+ !orged. #$planation. N%&.
Questio tion Nu Number. 3. he co common bo bonding mat mateerial ial !o !or u ungsten ten "a "arbide is. is. Option A. %n(ar. Option B. "obalt. Option ". *ilicon. "orrect Answer is is. "obalt. #$plan #$planatio ation. n. "obalt "obalt is is used used to bond bond tungste tungsten n carbi carbide de to cutting cutting tools. tools.
Ques Questi tion on Num Number. er. 33. Frain rain si sie wil willl e!! e!!ec ectt th the mec mecha hani nica call pro prop perti erties es o! metal etal.. Whi Which ch o! the !ollowing is true). Opti Option on A. &arg &argee grai grain n sie sie is is attri attribu bute ted d to slo slow w cool coolin ing g rate ratess and and will will gi( gi(ee less less tens tensile ile str stren engt gth. h. Opti Option on B. =ate =ateri rial alss wit with h lar large ge grai grain n si siee are are more more pron pronee to to cre creep ep.. Opti Option on ". ". *mall *mall gra grain in si siee is norm normal all+ l+ att attri ribu bute ted d to rap rapid id coo cooli ling ng rat rates es and and wil willl gi(e gi(e less less tens tensile ile strength.
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www.easaquestionpapers.blogspot.com "orrec "orrectt Answ Answer er is. is. strength. #$planation. N%&.
&arge &arge grain grain sie sie is attri attribut buted ed to to slow slow cooling cooling rates rates and and will will gi(e gi(e less less tensil tensilee
Ques Questi tion on Num Number. er. 34. he he cra crac cin ing g o! o! str stru uctu ctural ral mem membe bers rs under nder rep repeate eated d str stres esss lo lower wer tha than n the ultimate tensile load is nown as. Option A. creep. Option B. !atigue !ailure. Option ". stress re(ersal. "orrect Answer is. !atigu igue !ailur lure. #$planation. N%&.
Ques Questi tion on Num Number. er. 3:. A piec piecee o! o! dur dural alum umin in has been been ann anneale ealed d and and bent ent in into shap shapee pr prior ior to to !itting to an aircra!t. Which o! the !ollowing is correct) %t must be. Opti Option on A. !itt !itted ed to the the airc aircra ra!t !t with within in 2 hou hours. rs. Opti Option on B. B. solu solutio tion n trea treate ted, d, pre precip cipita itatio tion n trea treated ted and and !itte !itted d to the the air aircr cra! a!tt with within in 2 hou hours rs.. Opti Option on ". solu soluti tion on trea treate ted d prio priorr to to !it !itti ting ng to an airc aircra ra!t !t.. "orrec "orrectt Answ Answer er is. is. soluti solution on trea treated ted,, precip precipita itatio tion n treate treated d and and !itted !itted to the the airc aircra! ra!tt within within 2 hour hours. s. O8 solution treated prior to !itting to an aircra!t. #$planation. N%&.
Ques Questi tion on Num Number. er. 3;. A shee sheett o! o! met metal al is desig esigna nate ted d 202 202 6 6. h he co code tell tellss us us tha thatt the the material is a copper based aluminium allo+. Option A. annealed an and Na Naturall+ aged. Option B. B. solutio tion tr treated an and na naturall+ ll+ ag aged. Opti Option on ". solu soluti tion on trea treate ted d and and art arti! i!ic icia iall ll+ + aged ged. "orr "orrec ectt Ans Answe werr is. is. solu soluti tion on trea treate ted d and and natu natura rall ll+ + age aged. d. #$pla #$plana natio tion. n. N%&. N%&. http http@ @@ww @www w.tr trai ain. n.co com@ m@(m (ms@e s@eng ngin inee eeri ring ngDm Dmeta etalD lDstd stds. s.htm htmll
Ques Questi tion on Num Number. er. 3. A metal etal is cod coded 12;3 12;3 usin using g the the %A/* %A/* cod coding ing meth ethod. od. his means eans the metal is. Option A. ;3< pure aluminium. Option B. .;3< pu pure al aluminium. Opti Option on ". a cop copp per based ased alum alumin iniu ium m all allo+ o+ i.e. i.e. dura duralu lum min. in. "orre orrecct Answe nswerr is. is. .;3 .;3< < pure ure alum alumin iniu ium m. #$pla #$plana natio tion. n. N%&. N%&. http http@ @@ww @www w.tr trai ain. n.co com@ m@(m (ms@e s@eng ngin inee eeri ring ngDm Dmeta etalD lDstd stds. s.htm htmll
Ques Questi tion on Num Number. er. 40. A mater ateria iall co contain tainin ing g app appro ro$i $im matel atel+ + 44 44< nic nic el and and < cop copp per is nown as. Option A. Nimonic. Option B. =onel metal. Option ". %n(ar "orrect Answer is. =onel metal. #$planation. N%&.
Question Number.
41.
=onel metal consists o! appro$ima imatel+. l+.
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www.easaquestionpapers.blogspot.com Option A. 44< "h "hromium an and < "o "opper. Option B. 44< "opper and < Nicel. Option ". 44< Nicel and < "opper. "orre orrecct Ans Answe werr is. is. 44< "hrom hromiu ium m and and < < "op "opp per. er. #$pl #$plan anat atio ion n. N%& N%&. http ttp@@w @@www ww..len lennte ntech.c ch.com om@= @=o onel. nel.h htm
Question Number. 42. *il(er so solder is is co composed o! th the ma materials. Option A. "opper, in and *il(er. Option B. Kinc, &ead and *il(er. Option ". "opper, Kinc and *il(er. "orre orrecct Answe nswerr is. is. "oppe opperr, Kinc inc and and *il( *il(er er.. #$pl #$plan anat atio ion n. N%& N%&. http ttp@@a @@ah h6 6ni ni(e (es. s.co com m@sol @solde deri ring ng.h .htm tmll
Ques Questi tion on Num Number. er. 4. he he eas easee wit with h whi which ch a mat mater eria iall can can be !or !orged, ed, ro rolled lled and and e$t e$tru rud ded without !racture is an indication o! a material5s. Option A. A. malleabilit+. Option B. B. ductilit+. Option ". brittleness. "orrect An Answer is is. malleabilit+. t+. #$planation. N%&.
Question Number. 4. What is !atigue). Option A. "+clic stressing o! a part. Opti Option on B. >ail >ailur uree o! a com compo pone nen nt due due to corr corros osio ion. n. Option ". ". "onstant st stressing o! o! a part. "orre orrecct Ans Answe werr is. is. "+cl "+clic ic stre stress ssin ing g o! o! a par part. #$planation. N%&.
Questio tion Number. 43. Wh+ is st stop dr drilling ing carried ou out at at th the en end o! a crac). Opti Option on A. o chan change ge the the direc irecti tion on o! the the crac crac . Option B. B. o sto stop th the cr crac !r !rom pr propagatin ting. Opti Option on ". o incr increa ease se the the str stres esss con conce cen ntrat tratio ion n at at the the crac crac end end.. "orr "orrec ectt Ans Answe werr is. is. o stop stop the the cra crac c !rom !rom prop propag agat atin ing. g. #$planation. N%&.
Question Number. 44. Annealing o! aluminium. Option A. increases ses the tensile str streength. th. Option B. maes th the material br brittle. Option ". ". remo( emo(ees st stresses ses ca caused sed b+ b+ !o !orming. "orr "orrec ectt Ans Answe werr is. is. rem remo(es o(es stre stress sses es caus caused ed b+ !orm !ormin ing. g. #$planation. N%&.
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