www.easaquestionpapers.blogspot.com 2. Printed Circuit Boards.
Ques Questi tion on Num Number. er. 1. When hen com compare pared d to a syst system em that that is cons constr truc ucte ted d on one board oard,, a modular system using Printed Circuit Boards (PCBs) is. Option . harder to !ault !ind. Option B. more e"pensi# si#e !or spares res. Option C. easier to !ault !ind. Corr Correc ectt ns$e ns$err is. is. easi easier er to !aul !aultt !in !ind. d. %"pla "plana nati tion on.. N&' N&'.
Question Number. . Pr Printed Circuit Board (PC (PC) is constructed o! a plastic laminate $hich has bonded to one or both sides. Option . a th thin sheet o! o! co copper. Opti Option on B. #ario arious us thic thic*n *nes esse sess o! copp copper er.. Option C. C. a th thic* sheet o! o! co copper. Corr Correc ectt ns$e ns$err is. is. a thi thin n she sheet et o! copp copper er.. %"pla "plana nati tion on.. N&' N&'.
Question Nu Number. +. o$ is is a PCB pr protected a! a!ter ma manu!acture-. Option . By con!ormal co coating. Opti Option on B. With non nonco con nduct ducti# i#ee #arn #arnis ish. h. Option C. With $a". Corr Correc ectt ns$e ns$err is. is. By con! con!or orma mall coa coati ting ng.. %"planation %"planation.. lthough lthough #arnish #arnish is o!ten o!ten used used on PCBs, PCBs, /con!ormal /con!ormal coating coating// is the name name o! the process usually applied to aircra!t use PCBs. ircra!t %lectricity and %lectronics %lectr onics 0th %dition %ismin Page 1.
Question Number. 2. multilayer PCB has. Opti Option on . t$o t$o or or mo more lay layers ers on on on one or or bo both sid sides. es. Option B. B. one la layer on on ei either si side. Opti Option on C. t$o t$o or or mo more lay layers ers co connec nnecte ted d in in ser serie ies. s. Corre Correct ct ns$e ns$err is. t$o t$o or more more lay layers ers on one one or or both both sid sides. es. %"pl %"plan anat atio ion. n. C&P C&Pss 33C41 33C411 1 Para Para 10. 10.
Question Number. 0. When remo#ing a microprocessor. Opti Option on . ensu ensure re the the po$ po$er er is is O55 O55 to a#o a#oid id sta stati ticc disc discha harg rge. e. Opti Option on B. no dam damag agee is is do done by stat static ic disc discha harg rge. e. Opti Option on C. C. cons consid ider erab able le dam damag agee can can be don donee by sta stati ticc disc discha harg rge. e. Correct Correct ns$e ns$err is. consid considerab erable le dama damage ge can can be done done by static static disch discharg arge. e. %"pla "plana nati tion on.. N&' N&'.
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www.easaquestionpapers.blogspot.com Ques Questi tion on Num Number. er. 6. On a PCB PCB, a decou ecoupl plin ing g cap capac acit itor or is used sed to to get get rid rid o! o! tra tran nsien sientt currents bet$een $hich points-. Opti Option on . 7he 7he ele elect ctro roni nicc cir circu cuit it and and the the air aircr cra! a!tt gro groun und. d. Opti Option on B. 7he 7he neg negat ati# i#ee rai raill and and the the res restt o! o! the the circ circui uit. t. Opti Option on C. &nte &nters rsp paced aced alo along the the circ circui uit. t. Corre Correct ct ns$e ns$err is. is. &nter &ntersp space aced d alo along ng the the cir circu cuit it.. %"plana %"planatio tion. n. 7he decoupl decoupling ing capacito capacitorr decoup decouples les the C signal signal !rom the 8C 9uiesce 9uiescent nt current.
Question Number. :. decoupling ca capacitor in in a PC PCB is us used to. Option . . minimi imise tra transien ient cu curre rrents. Option B. pass 8C only. Option C. pass C only. Corr Correc ectt ns$e ns$err is. is. pass ass C C on only. ly. %"planation %"planation.. decoupl decoupling ing capacitor capacitor decouple decoupless the C C !rom the 8C in in a signal, and and bloc*s bloc*s the 8C.
Question Number. ;. What is th the ba base material o! a PCB-. Option . . &nsulator. Option B. B. emiconductor. Option C. C. Conductor. Corr Correc ectt ns$e ns$err is. is. &nsu &nsula lato torr. %"planation %"planation.. &nsulator &nsulator.. ircra!t ircra!t %lectricity %lectricity and %lectronic %lectronicss 0th %dition %dition %ismin %ismin Page Page 1. 1.
Ques Questi tion on Num Number. er. 78> ?1, ?1, ?+ and and 1, 1, + + conne connectio ctions ns cross cross conn connecte ected d to the 7>. 7>. %"planation %"planation.. 7o con#ert con#ert a di!!erential di!!erential synchro synchro !rom !rom subtraction subtraction to to addition addition you must must s$ap t$o o! the stator leads N8 s$ap t$o o! the rotor leads at the di!!erential transmitter.
Quest estion Number. er. 01. 8i!!ere erential transmitte tters ar are use used d to. Opti Option on . add add or or su subtra btract ct t$o t$o ele elect ctri rica call sign signal als. s. Opti Option on B. B. add add or subt subtrac ractt a mech mechan anic ical al sig signa nall to an elect electric rical al sy synchr nchro o sign signal. al. Opti Option on C. incre increas asee the the opera operatin ting g speed speed o! the the sy synchro nchro recei recei#e #er. r. Correct Correct ns$e ns$err is. add or subtr subtract act a mech mechanic anical al signa signall to an an electri electrical cal synch synchro ro signa signal. l. %"plana %"planatio tion. n. di!!e di!!erent rential ial synchr synchro o is used used to add or subtrac subtractt a mechan mechanica icall signal !rom !rom an electrical signal deri#ed !rom the synchro transmitter.
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www.easaquestionpapers.blogspot.com Ques Questi tion on Num Number. er. 0. When hen res reso ol#in l#ing g a Cart Cartes esia ian n in input put to to a Pola Polarr ou outpu tput. Option . the ou outputs are are t$o #o #oltages. Opti Option on B. the the inp input utss are are a sha sha!t !t angl anglee and and a #ol #olta tage ge.. Option C. C. the in inputs ar are t$ t$o #oltages. es. Corr Correc ectt ns ns$e $err is. is. the the inpu inputs ts are are t$o t$o #ol #olta tage ges. s. %"pl %"plan anat atio ion. n. Cart Cartesi esian an inpu inputs ts are are the the > and and D coord coordin inate atess and and are are repres represent ented ed by t$o t$o #oltages. 7he outputs are represented by a #oltage and an angular position.
Ques Questi tion on Num Number. er. 0+. reso resol# l#er er sync synch hro outp outpu ut is is ob obtain tained ed !rom !rom a rot roto or $it $ith. h. Option . one si single co coil. Option B. B. t$o co coils at at
