Module 05 Part 2

www.easaquestionpapers.blogspot.com 05.03. Data Conversion.

Questio tion Number. 1. If a signal ha has quantity in volts an and phys hysica ical posit sition it is. is. Option A. digital. Option B. synchronous. Option C. analogue. Correct Anser is. analogue. !"plan !"planatio ation. n. #his #his is is the the definit definition ion of an analog analogue ue signal signal..

Questio tion Nu Number. $. %ithin a com comp puter co controlled fl flight syst system em&& po position ion fe feedbac' is is converted from. Option A. A. positi sitio on fe feedbac' to to ra rate feedbac'. Option B. analogue to to di digital. Option C. digital to to analogue. Correct An Anser is is. analog logue to to di digital. tal. !"planation. NI(.

Question Number. ). %hat is serial to parallel and vice*versa called+. Option A. ,itching. Option B. -ultiple"/emultiple". Option C. !ncoder/ecoder. Corre orrecct Anse nserr is. is. -ul -ultip tiple" le"/em /emul ulti tipl ple" e".. !"planation. NI(.

Question Number. 0. A thyristor is a device hich has. Opti Option on A. a posi posittive ive tempe empera ratu ture re coef coeffficie icient nt.. Opti Option on B. a negat egativ ivee tempe empera ratu ture re coef coeffficie icien nt. Option C. C. a tem temp peratur ture co coeffici icient of of e ero. Corr Correc ectt Ans Anse err is. is. a neg negat ativ ivee tem tempe pera ratu ture re coef coeffi fici cien ent. t. !"planation. NI(.

Ques Questi tion on Num Number. er. 2. 3hy 3hysica sicall vari variab able less in quan quanti tita tati tive ve form forms& s& such such as voltag ltagee or angu angula larr rotation of a shaft are. Option A. digital. Option B. analogue. Option C. binary. Correct Anser is. analogue. !"planation. NI(.

Questio tion Nu Number. 4. A / to to A converter is is re required to to pr produce an an ou outpu tput ra range of of 5 to 156. #his can be achieved by. Opti Option on A. a non non inve invert rtin ing g op op amp amp conn connec ecte ted d in in ser serie iess it ith h out outpu put. t. Opti Option on B. an inve invert rtin ing g op op am amp con conne nect cted ed in seri series es ith ith outp output ut.. Opti Option on C. a dif diffe fere rent ntia iato torr it ith h a 155 155 7il 7iloh ohm m fee feedb dbac ac' ' res resis isto torr. Corr Correc ectt Ans Anse err is. is. an inve invert rtin ing g op op amp amp conn connec ecte ted d in in ser serie iess ith ith outpu output. t. !"planation. NI(.

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www.easaquestionpapers.blogspot.com Question Nu Number. 8. A / to to A converter o ould us use a precision am amplifier to to. Opti Option on A. comp compen ensat satee for for the the varia variatio tion n of of the the fee feedb dbac ac' ' res resist istor or ith ith tem tempe pera ratu ture re.. Opti Option on B. ensu ensure re that that the the outp output ut volt voltag ages es rem remain ain accu accura rate te.. Opti Option on C. ensu ensure re that that the the inpu inputt volt voltag agee rem remains ains accu accura rate te.. Corr Correc ectt Ans Anse err is. is. ensur ensuree tha thatt the the outp output ut volt voltag ages es remai remain n acc accur urat ate. e. !"planation. NI(.

Questio tion Nu Number. 9. A given tr transdu sducer pr provides a voltage h hich co correspo sponds to to tr true heading. #his voltage can beconverted to :bits: by using a. Option A. analog logue to digita ital co converter. Option B. digi igital tal to analog logue converter. Option C. commutator. Corr Correc ectt Anse nserr is. is. anal analog ogue ue to digi digita tall conv conver erte terr. !"planation. NI(.

Question Nu Number. ;. An A to / converter us uses su successive ap appro"imation to to. Option A. increase resolution. Option B. increase accuracy. Option C. increase speed. Correct An Anser is is. increase sp speed. !"planation. NI(.

Question Number. 15. An igh frequency Option B. B. ,itches cl closed& ma magnetised Option C. C. ,itches op open& un unmagnetised Corre orrecct Ans Anse err is. is. ,it ,itch ches es clos closed ed&& mag magne nettised ised !"planation. NI(.

Question Number. 19. Audio sounds recorded digitally. Opti Option on A. are are su superi perio or qua quali lity ty and and gra graet eteer ban band did idth. th. Option B. are narro bandidth. Opti Option on C. are are not not as accu accura rate te due due to to cli clipp ppin ing g and and inpu inputt err error ors. s. Corr Correc ectt Ans Anse err is. is. are are supe superi rior or qua quali lity ty and and gra graet eter er ban band did idth th.. !"planation. NI(.

Ques Questi tion on Num Number. er. 1;. An ana analo logu guee to to dig digit ital al conv conver erte terr h here ere it it cou coun nts up to to bin binar ary y sta state equal to the analogue input and then bac' don hen this is reached is a. Option A. a ramp type converter. Option B. B. successiv ssivee ap appro"ima imation ion co counter. Option C. flash type converter. Correct An Anser is is. a ram ramp p ty type co converter ter. !"pla !"plana natio tion. n. /igi /igital tal ?un ?undam damen ental talss # ( ?loy ?loyd d page page 8;5. 8;5. Share your documents with us at ([email protected] ( [email protected])) DownloadOur Mobile pp !or "ecent #apers

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Ques Questi tion on Num Number. er. $5. #ransi ansist stor orss are are used used in a curr curren entt trig trigge gere red d / to A dev device ice to. to. Option A. sitch off the inputs. Option B. sitch on the input. Option C. C. change th the st state of of th the in inputs. Corre orrecct Ans Anse err is. is. chan change ge the the sta state te of the inpu inputs ts.. !"planation. NI(.

Questio tion Nu Number. $1. Op am amps ge generally used in in A/Cs /Cs an and /A /ACs ar are no norma rmally. ly. Opti Option on A. high igh inp input ut im imped pedanc ance& hig high h ou output tput im imped pedance ance.. Opti Option on B. high igh inp input ut impe imped danc ance& lo lo out outpu putt im impeda pedan nce. ce. Opti Option on C. lo lo in input put im impeda pedanc ncee & ho outp outpu ut im impeda pedan nce. ce. Corr Correc ectt Anse nserr is. is. high high inpu inputt impe impeda danc nce& e& lo lo outpu outputt imp imped edan ance ce.. !"planation. NI(.

Question Number. $$. Analogue logic 1 is. Option A. closed sitch& (ogic Q@5. Option B. closed circuit& (ogic Q@1. Option C. open circuit. Corre orrecct Ans Anse err is. is. clos closed ed circu ircuit it&& (o (ogic gic Q@1 Q@1.. !"planation. NI(.

Question Number. $). An A/C uses su successive appro"imation to. Option A. increase speed. Option B. increase accuracy. Option C. increase resolution. Correct An Anser is is. increase sp speed. !"planation. NI(.

Question Number. $0. A /AC uses a precision amplifier to. Opti Option on A. ensu ensurre th the ou output tput voltag ltages es remai emain n acc accur uraate. te. Opti Option on B. comp compen ensat sates es for for the the vari variat atio ion n of of the the fee feedb dbac ac' ' res resist istor or due due to to temp temper eratu ature re.. Option C. C. ensur sure th the in input rem remaains ac accurate. Corr Correc ectt Ans Anse err is. is. ensu ensure re the the out outpu putt volt voltag ages es rem remai ain n accu accura rate te.. !"planation. NI(.

Question Number. $2. A precision op op*amp is is us used in a /AC to to. Opti Option on A. com compen pensate sate for for tem tempe pera ratu ture re vari variaatio tion. Option B. give ive outpu tput at required level. Option C. ma'e output beteen 5 * 26. Corre orrecct Ans Anse err is. is. give ive ou outpu tput at at req requi uirred leve levell. !"planation. NI(.

Questio tion Number. $4. In an an