electrical engineering objective questions part 12

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DO NOT OPEN TillS 'ri!:S1' BOOKI.BT li.NTII. vou ARE ASKED 'i~fJfs~J .. ~ I" T .. B.C. : N-DTQ·K-GNG TEST 800KI..ET SF.RlES

Serial N(! ' .

TEST BOOKLET

i'}LECTRlCAL ENGINEERING

Time Allourcd : Two llcmr.• .1\la.rimum Mt•rks : 300

INSTitUCTIONS I. IMMr:niA'n:LY M''t'im THE COMMJ.~NCI,MRN'r Of' Tim gXAMJNJ.'t'ION. VOl! SHOl.lUl CHECK

THAT TI·IIS '!'EST llOOKl.ET DOES N01' I·L\VE A.\"'Y UNI'IUN'l"gl) OR TORN OR MISSING PAGES OH IT~~MS. !'.TC. IF SO, Gl'T IT HEl'LAGgl.l BY A COMI'!.ETE 'l'EST BOOKLET.

2. EN COllE CLEAHL Y TII.E n:..•n• I.IOOK.Lg1' Slo:ttt~;s A, U. C OR !I AS 1'll1~ CAS~; MAY m; IN 'I'HE API'ROJ>I\IATg P!~\CJo: IN TJ-H; ANSW~:tt ;~Hm~:'l'.

3. Yrm ha.,·t.> to (lflt.er vm.;r H<1ll N1i1mb¢r on tb.: 'l'~-•t Il<>oklol in tho; Uc>X pr<ovided nt'•llJP;odo. DO NOT .. ~rite an.vtlting elMtt .:•n the 'rt;"~l rs._,,)kt~~.

4.. Tld)l T~t l~~).klet '~<mts~hn; 1'20 Sti~mti i'suc~u~msJ. f~;u::~• ltNn ;» pr~nted bO't.h jn Hindi and EngUs.h. ~~~tt!h 1~m e..Hnpru;~~ rt.nu f'('J;ptm~~ ~ ~Hl.S.Wt!t"~j. ,. ()I~ ...... ,n ~~}i(.•t;t Uut feiipi)US, width JQ\l •MU'lt w mntk: c,n the AnMWt:r Stu~t.'"L l1; ''tslit! .YC>u ft:od t.hllt tlu.·r~ hi mvr~ l.h4\tl one ct.Jrf<:tt:l re~{>OUHI..", mntk th~ te.Qpom;e whi<:h }'i.lU (''>nstdt•r t}u~ h~~l- Jn >.m~i , .. ~~e. r.huv!<(l. ONJ.Y ONB r~.l:lfl'.1ttsc fur tJtu:h it.t~m.

G. You lua~(' t,.,., mark ~}a .~ .. (JUT n.•.~>p<'mi!.l'"S ONI~Y em tht~ riCfH,nlW. t\J~\· .. er 8tK-t$t pt'(:i\•id,~d. &;,~ direction.'! ~n tl"' Am;w.,r Sheet.

6. :\U itemtt ,~~lrr~· <.'<JUitl Hl4tr\l.e.

'7. BeftJr~ yuu procc.cd td natrk ;n ltH~ An..-::wm· Shtwt th(! reGpc.n~~ tt) vd.riouJO iUmur. in th~ Ti!~t Bnoklt1t. you hnYe to rm jn s.\)nlt.' p:tr1.1C\1l~ I'R i~i dw An~WCt' Sh~N OU:I Jl-'$1' in~trut:t.il.mct ii.(lnt w )'(\U with ynur Adrnbssicm C<~rt:jficat.(~

8. Aftm· yo'~ hnve C(Jtnp:!.!k'd f1Hin~ in uB YdUJ' rt~..:trxm~H .. m th~ Atunver $h,~~t nnd 1.he! '~x.o.roinn.tlon h~s (!Onchulcd. )'bU sohoultl hand ovt.•t 1.<; !.ht'! lcwif!ihlt()f' <1nlyl1w ABNI:t.!UY Shee-t. You art: p(!rmit.Wd tr> tak~ nWSl}' with J1'.SU lht• n.·fl~ B~HtklN.

9.. S~u:4Jt3 j()r rTJugh \,.·uri tJr<! "P?Nld.t.•d in thtr T~'!J;t Bookl~t ~t th<• tH1<.i.

10. Pen~1ty fot• ~·ronj! an~~"·en : 'rHI~R·; WIJ..I. BE I'I~NIII..n' F'(JR WRONG ANSWI':IlS MAHK~:n BY A Ct\NlH»AT" IN nn: Ol'\.JEGTIVE 1'\'PE Qm:STION PAI'F:HS.

\ i; Th~rt' UJ'l!' four ~Ju~rnat~~t~s f~>r the H-nnw<"r tu ~\'r!l'Y (.~ue;;tion. ~·ur ench r~u<~lion (hT which ~' wroHg

;uuowt>r hu8 tx~(,m g'tv~n by lht~ ~·J.u1dhintc, on4.""thlrd {~.$$) t:.f tltt~ HHlrks Q11SiJ:n.,ri ·.o th11t quL'a:ticm wiU bt~ d(~\J('tr'.o{i l\~ pNUlhl'.

c\i; 1f u q"t\(it!!lHt• ~i~o·Nc mun.• thnn Gflt." nnJ~w.cr. lt win t.~ tr-:o»tud MB n 'WT<mg ant'iwcr ~\'(m if un~ of the giVN1 ilH$\~.'Hi; tmppN!-1' 1A.:> 00 ("(lrnd und t:.hert~ wm t~ Natn~ penfih-.Y (Uf, tttJ\'lV~ ((.l that CtU~StiOn.

{til; lf ~ lJUt~utic.n i~ ttl'H f.ohmk, S., •. no ru1~wut· ie. Jl\v~.,., b.~· tl1~ r.tnu:Hd«t"~· t.h(•O.• wiU •~' n.-, ~n1tJty lht that (lUf.\Stit>n. ________________________ ...... , ______ _

DO NO'J' OPEN TillS TEST 800K.LET UNTIL YOU ll.RE ASKED TO DO SO

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In th~• <:ircu.it. ghown, whnt i• th" rummt in th;, l £.) rm:~int:m· ?

t r. ~ (d'l

tJ A 'J.A

!i/:i tl ..---.-------,---···T-''\fi.A/V-o A

L---~----~.--~l--~oH 2A

l''or the n~tWtJrk snown abovu, tb{) Norton's 6

t~quivu loot (~urrtml nc.rogs A.B i.s given by

iH) ! A

~b) 2 A

~·d :I :\

td.i '1 ,,

f"m· tJw t:tn~uit. !o)huwn in fo'ig. t;,l;. tf V c• , V, vnit• ann V ; 0 volt, 1.b"t1 I " ··· 5 Amv; " ' whil<' for v ... " (I •<>lt 1md V ~ I ~olt.

" ! ~ \l·:; Ant!). Whnl ~m !.he v ohw• uf it;t: (Amp~) s·md R~ {()}u:.:H() feu· Nm1t.trt•.,

" 'l"ivtllent botween A nnd B M shown ;n ~'ig. !bl 'J

{u; 2·5 und (}

{b1 10 ttnd 0·5

:e~ ;, ~ind 2

idi .. 5 and 2

N · 0 T Q-1( .. c;NQ Ai

l\n ircnj .. (:(,1rt:d L:t.~il t.u:kt!~ ·~ A at.:' ptJWt:t i~t{:t&:~r

of 0·5 wht-n t>JfllltJI:k•d t<> a 200 V, 50 1·1?. ""I'Pl.V If t.h•~ •~luivalent m~istamm du" tu •:<>i'F'" Ins" i~ 20 i2, whrtt. i~ t.ht; equivalunt re~ist.nncc~ l:on·t~HpomJing lfJ lhn tnn~ loss ·.r

~a) (IJ:)

{ l:t :• 5 ~~

I.~!~ Ill~~

(<H l.fo (~

Three idtmti{:n.l itnpt~danet!g ore ~·cmnr:'lcted fit"9t in ~tnr and T.hF.~n ia ddtn hJ .a ~i-phnse~

bal!mc!"l ~upply. If tl.>~ t.nt:al pow<•r <:onsumud b)' the load $n t.he t.wo e cJnn\:!ctjnns ur~ \V ~;.tnr nnd \V ~~t.•hw whal i~ thH Vt\hlc of Wdt•ha ?

(a) W a~ut chl 12 w

" J;[flt'

;;l·· w '< •. t;~A!'

'fhr. matri!< nf !\n n : 1 idt~tJ l 01

1 I. ll dr.scMb<'• th" I I:·) tnussfornu~r ls ,

.... ; II .i

trnnsfi.lrmm· ~n t!'rms flf ita ~·l,: Z·pararnt~t..crn

{ b} Y · ~·ltflUUl!tt:~rs ic i ABCD·plltllm.,U!r& ( dJ h··J'nrarn~h!rs

................ _,,.,.,<> B

For th~: <·.ircu.it s.bowu, Uw Vi:9ltw nf H L~ $rl

ndjusll~d tati tJ> tran~tet t.h~) maxi mum f)Qvu~r tn

I ~} resi~l.or. Whai ~~ tlu• unum••t of pcw>~r '!

ia; 1 w ibj '1W (.: ~ 4 w ( rl:i HW

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HJU I!J illl. 4. J~""/v·l·YvVv···r'NVV· .. r ......... J

6() \'I ~· ~ ?.0!). >, 20 t 'l :s: Hl \.p lf> A

'·[.:. I L > I' ... ··- ·········· ........ \... __ ,

~ Ill? m~"?J ''. 1 n a; !lfm)w l! om ll<lli( am t. ?

l S I O A ; \; ; 2 !1.

icJ 9 ,,

!d > :tlil

:;;tR ~il' 11~ Olfi'T ;r, ~i?. farn4'1 ·~ :>

{a:• I ;\

-:b~ z i\ lc: ::1 A

tdi •I A

All 'It :itf.:l <jR1 flHl

~iF.! 1111 il ~<IIi! 'It! 'I~'<~ il. are Vs " V 1 volts 2IW V = il vol\, c"if I = - 5 Amr ~: ;mrfil; V" = 0 va ll .Jffi V • I vuiL ll> 1m!. I = 0 ·6 Amp

t -, *m Ia; full ; b " <rntm rrm ~ . A Ji\< B $

<fuJ ~ ~ a; ~ •Avv m f.:m ·~(: ( 1\mp~l 31ll R .. ~ •Ohrm<i i5 'IR 'I'UI 'f. ?

{fi ; 2·6 ~ 5

!bi Jl} :Y.I< (J·:i

kJ :;Jlll '· 2

!dl ··5:~~· 2

N·OTO·K·GNG t 3 A I

l1lf> ffif;-~ ~ ;mr 200 V, ilO lh. lr<!l'll 'i! ;;Itt\ ;;mjT i_t <ff 0 ,:; mffi :;"~-"E5 "" 4 A rfi~ ·~ I tlff: ~ ~ a; <11Wl <\<'U 1l#l')tr 20 n t\, ·t.: am; tllf.r ij; Wlo ¥'1 lffirotl ClVl ~ ,

i a l iHi !b} 5U if) 10 Q ldJ 15 Q

t'ir.! lffilll uffiaiU~ 3-mrh &~ ~ !R: ~ nm I ~U<rj il ~ m t om lJil:' it ~ id eit.M il I

'lt"?. &-'it ;:i4:;R1 ii ~{ ~ ¥I ~ VIT(ll' w 1M<'

1!~!1 W delL> ~ • cfi W •l•h .. • il'il :n-.;- <fUI ~ ?

( (!' !bJ

w Hltf

;;) V' ·v ~ ''" •ta~

./3 Vv' , t.nf

:l w star

n : l :l!r~m () .,

I ~ 1 ·= .~ .. I l• _,,.

Y·llrdl'l

AHCD-!m!R h-llftr('l

<mit! TJP ~ it. R ilil 'll'l S<t iffi't ;A ~·n~ fil;m JIRI1 ~ ~ I U il'i'1{\t:l11> l! lQ!llt! 'JF.--t\ Jicr{Ut t.ffi ~ r ~~ <'51 ~<~t•; om ~ ?

{ U't ! w i b 'l 2W {C) 4 w <.t:H ~w

........................................... - ····-··-----------

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J . '• I I X~t. .. uO.;. )(.1.

S<>f>llrnt.icm property of stntc-\l'lm~ition mnllix h;

ia.: ~.t ... t~>:' = \l)(t) ~iu:

'hi ~t. - to) ~· ~-ltt.l O(t.u~ t c: J ,In ... t.

0; ~ <l{tJ \I .. 1o.0J

·JJ• " ) ,, .. t(•'J "'{t. 1.1~ to'!l -· t.1) v:: v ,t. 0 • '!)J

!f ... fi.t..i .... ~- K K <. ll. nnd iiiJ) ~ I . t.h<m. iit'l di I dt "

(~1• im:t'~~ant~s (~Jtpon~~nt:iaHy.

\ b ·~ d~~crea.s'~~ C!-xpmumtiaUj• .

.: '~; h1CI"(~nac5 lines.u·J :r.

T~H! eb·l':'ui t sht) \ovn 1s in :Ht!:ady-statJ:: with (oi'Witch S o,~~n. 'rlh1 Rwit~h j1; d()l'>ot~d rd. t : 0.

Wh111. i~ tiw tnrrent th.rc:m).:h :? {i. o·c~is!l:Jr 111. ~T1'W t: ';::: (r' ·.~

!T,j u A

;b; 2 A .. :t

~ t' ~ 4 A .... • "

!d~ I A

N·OTO·K·GNG ! II

12. I H!

j I fl

in the c.il'~:uit 1-\>hnw·n, whi'<it. i~ th~~ !fc-qt~em.:y ~H.

whkh tJw current I will b1.' Zt!n> .,

Ill) 5() J-lz .:bt 2,-: Hi

f(•)

liz 2;.

s~: '!' :~s

2ls:t ~ ll

5:-: ~ l

4. ~~ ..... ~ .• ~. ~~········· .j t)

s ,. !•Is* •· :lo

\Vhit:h i• t.he vulid clri "ing pui nt i mpclllilll<:l;f.~.'.' fu nctionn set ·~

(:,i) l, 2 11nd :l

lbi I. ;l lln<i 4

~ (') I. 2 und 4

<d:• :~. ~~ and 4

1<1. Whr.l. lmj}ftl!lls if t.h<> •umJlling lim" iM '"''" thun thl! N)'qui;;t i ntmvn~ ?

in·: Strnpl~r· flH.nrs ccut h~ UJ~t)d t(; dbt~tln tht.~ ,~rig1nni s1gnuJ

! h j Bandw\dt.h i rtere~~es

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1l5l llR <mT # ' 1.11?-i <'! t + 1 l, l .- -1 IR t!<lXI5

3IWr i! far -1 {b)

!_,·) <I

II. 3l<mff-~ 3."f<<W O'>l !pl'a'imt'l Jj"' <roT t ?

llll 41! t - t.(!J .,. ,~ t.i (1'. t(l f

llf1 ~'<t ... tuj::: ~··· 1 •.u ~(tt):

(c~ ~;(t ... t0

1 = ~)(~J ...:~·· ~d:(J)

!di ~~!t - 1.01 = ·~·· 1 !n ~···· 1 !t.0i

ilo till:··················· ~K K<O 3~

<li I dt

t.a i CRtffili#.! 9.1'4 ,n<n t! i

fh 1 axllfcli-<t\\ ~ F,imr i! 1 (C) W{j'<lffi' ~ ~ ~ ~

idt 1.f<!ld5i1: ~ ~<!1 ~ !

4 n .. ····----·-WIV ............. r···········-........ ""l

-' I_ ~ 2 ~~ l "' 2 1'' I

12V .,.. _;-:\__ !

- •• ·:'·: ·-- $ ~ J ! I H TIp fuRl s WI' ~ ~ f~Jfrr I) Rrnw.n 1RII llfuro Rm · 3mtm '11' ~ I ~ t = 0 o:R ftlT.I ;rn: ilP<IT

lillffi ~ ; mm t ~ w IH 2 n afu~tiiD it uro ll<l'ft(

q'(T{ ~ ·~

{a ·; O il

!b) 2 A .... :l

(to~ 4 A .. ,. :J

ldi I A

N-01'0-K·GNG

·········································---··-······················································--------

12. 1 Hl ~ r·-~--.JWV\--.. 1 .........

1 v ~ ~"' +" ____ .............. [ ....... ___ 1

~lfu 111! ~ Ti. fum 3ll¢1'l 'R URT·l!<W- I ~ t:ltll ?

; r•i 50 H~

!hf 2n lb

·:d I Hy, ....... 2r:

ido !'~; Hz

s .. y. :~

2(;2.;.};

ih1 'ill<f.'l !lr.<;, i!lmm:n "'""'; ~ro lll\;t -.rr ~ ?

lai 1, 2 3~ :~

I. h) l, ;~ ~ 4

(C) l' 2 3lR 4

tdl 2. a~.,

l<i. W. \IIT!Ua'l <Tm! •n~~ 3i<!w. t! 'il5'l i-1 ffi ilm

rnt? un '<~ltlt'l:l'' f.:m:ma;1 ·a;1 'Wl mm me-'! m<'' a;

~. ~ ~ :;n '<!Wffi ~

ibl ifu ~~ i! ic! ~ amm ~1\"r It ( cl l <~-<Tml <ll'T 'jit J1ml i\

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Ill. A s~'l!!.em hns t.he following lmn8fer luncti~n 18.

IOO!s + 5Hs + 50J . ....................................... :............................ . Wiuch ur the ~ 4 (5 + IO} (s 2 + 3..~ + 10)

fc>!lnwing ia th" type numbur and 1mh1r of the

~.~~ :· 4 nnd !l

\bJ •l ilnd 7

H·'i 5 and 7

(d) 7 a.nd !)

Wh11l is s.bl) e.orrect overnJI s.ransfer fuX!ctmn

i lor tfw aiK•v• block dingram '!

idl ... Gt- 0 2 '! -G1H1 - G,2H 1

17. Th<' 1>~~~~ loiJ!l W'anafor function of a unit.y neg,.tiv« fe•dback syst.<>m is given as

G!o J = -~1-.. Whnt i& the b11ndwidth lor thi~ .'i ·~· 1

;;ys i{'Cil unde< open luup 11nd dosed !llCJII

t\pP.raLitm• rP.spec.iively in rncllorec '?

llfJ 2 anr.i I

ih't I 11nfl 2

td l nnd 0·$

id'! 0·5 nncl iH;

N·OTO·K·GNG l 6 · A)

The open loop transfer function of 1\ servo

syfttem with unity negatave feedback i6 ~rivet!

96 : Cis) m ,_, .. , ...... ~ .............. Whllt is the damping (s -1 2)(s ~ 5)

ratio u.nti t.hr: m~turaJ (requenl.')' Qf

oscillation in rBdlsec '!

Ia) 7 .... and 4 ll

(hj 7 -· nrul 16 s

(e) ±and 4 7

tdl 4 lind lG -· 7

'!'he unil imJ•ul....-. reaponse of a secmtd-<~rdl!r tmdt>r damped s-ystem l!tnrting from rest is

given by : G{t} ~ 12·5 e~1 sin St. t ~ 0. What is the natural freque11cy in radlsec and the dampjng fB~tnr ?

(a) l 0 and 0·6

{b.l 10 and 0·8

(cJ a and 0•6

i.dl 8 und 0·8

R(sl C(s)

In the ~y~tem abown, what is the range of K fo1· st-ability '!

(a\ () < K < 40

ihl 0 < K " 80

fdl () < K. <: 10

------------'--------------........................ --............................. ..

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15. ffir 15! f.:!"tf\"!m.·l Ji<r-f.lll tDrR ~

ll){) (~ > 5'1 I• ·I· 50i C~s!:::

1s. mil ffir a;r l!<liiD ".lltl!li<l<5 'fl~hl·l 1); m~ ~ f

1fm :JlrRul 'li<'R G( ~) : ···············--~---··· ~ lltiT ts + 2)(s ·E· 5)

~ 1 i;.~}(yj(;z~;~;;;;;i·; · f.tHfiltfu<T -i\ it m m . .w tffiv~~>~ mom ~ l!>'\!?;

t? (a i oilz 9

lbl 4 :nR 7

!~) ft ~ 1

id't 7 311< 5

~tfi wr~ 31TIT4 t 1m ••t<~ <~:~ 3i'<R1JT l:fiffol (,:t: 1s. ~~,

lb! ... c.• .. L. ' ... f> .. ; 1 ·•· G

1 .. , G}t

((:'! ... Gs .;Gs ······-'-·······-"·

1- G 1H 1 ·• G :·~~'~:

( ti) c;.- G.)

················-·! .............. ~ ........... ,,. l---GJ1 1 ---G ~H,

1 7. Q'mif; ;rtunl'!m g·1f.!a~r" 'iii! 11:o1 ~~ qm 3flrolr

(!ll'F! Gi s i ~ _I .. -~ i rfl l'i'l 1); fm! Rf~y q~r s + l

<ro1 ·&?,?. 'lffi !ttlT<'l'1 ~ ~;; i:it.p-t rad!s~t: :li ii>tlll'

<fflT ~ ?

lai 23ft"< I

fbi I ;!/\~ Z

!c! l lli'{ 0·5

ldl (J1i~05

N·OTO·K·GNG I 7 · A )

~ 1 ::\m>iO"T ~m mn ~ <:'rr.-A 311\lfu rndlsec l'i <fl'.ll # ?

(t\) -~ ll'l< 4 8

ib) 7_ 3lR Hi 8

lcJ ~-~4 c; 7

!ti'l ·l :!i1 .. < lli 7 •

f~li!; "f1 Jl<!'l'rt~n ffir <ill !}{fll il e-<lXll 31!ktr JI~Zil Gill ~ 12 ~; e·-6• ~in Sr., t 2: 1.1 ~ r ~.it radfg~c ii <i:IT'.nf<l'i!i 3lfc;lfu 311<· ~ !jllR5 iroT

!Ill ltl 3in (H:)

(b) 10~ OS

!ci B 3in 0·()

!dt 83ft< 0·!;

1-·-·

RI~J ~ K C(:~J _,, ·~ ...... -- ~~.:.:.2~--=--~~~--~~~-T """"""""""""""""""""""""'

from ·:w. fi:t -11, ~ a; lffi! I{ <m 'lful< 1rol ~ ?

(a~ (l ..:: ({ ,, 4(J

•.bJ 0<K<8()

(cj O<.K<20

!dJ O<..K<W

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·························----- --------- -----........................................................ .

l 1• it'l' . !'

+ 1' . f'

iJ > J ani! 'r > 0. \\'hat i:; the nH'\Kimurn

1.a 11 · ) { ~~...:::.~ ··~ i a+l.J

.; h ,l 1, (~ 1\ •• i ( .~.~ .. :~ ... ~ .. \1

t ~· ·- 1 /

! 2(;.

<a ! hight~r cont~u;t PQt:ont.ial .

!b) hil(her rnsisU,.,iLy.

li-J higher r«&itll.llnt<• w c.h& oxjdation.

~dJ 1.:•\<;{~f thurnHA.l t:dnducti vity.

Jo'renkt~i d.~I(!Ct jg du~ Ul 1ht~ ~xt~LNU'l., (t f

<nl <-x lr.> ol,>etrons i~ tht> cryatol.

~ h; f!j(tr·u holt~~.< in v(-dt~n ~.~~~ bnnd

! t.i lntti~.;, diAtnrtium i n tl'y~to I.

{(Jj {~:-ttr'U l.ttome betwt.'t':'n i.ht~ rt:!ftular ntotns .,r r:.-yst .. l.

The Kirchholr~ r.urrr<nl l>lW >s implir.it in th~ ~~x~•ru!-'l~ i()n

th) ~:. I) ~ ''n

Tlw !>'>lll•• l(•r l'::ncli<>n nf 11 lug <:«111 (>•)fl~l.tlor i,; I •

ih; J J .ds .. l)

• \'. f.\ ~

~r~h·n hy t1W n:q.u·r.u;~lcm .1 ... ~: .. ~~~ and lh;n ur ~t . I ... <tS

> · • b 1 ... •~ •·vLn• .. ~ li:J1n M mp. ... mmtur J~ gn•en y " ,, .. •:u~ I .; bs:

iH': J\ ·~· b ;md p < q

dJl ~··

., h and !' > ,, ~, .. ~ II ·' h imd !' > 'I ~ 1'~ : J\ .,, b :\nd " •: '·I

r <'l o,..,,

((J) '\.! )! H ,.J' ilb • ilt

27. {~\lt:ttt.l. iti CHit~ <~f tht!. tmJHl!'(.t\()t ~~it~1.t)t~h~Ctl'iJ~

rn tlt(•ria!~ then i~ •.m,d in mnn}' pr-anicul

d~vir.1~:;. Whieh -:tf t.ht1 f('lH9wfng dt:~vi{:t~s tb\:'s

110 1 use " <tunnz ~ryst.al ?

lal M~haniclll Obw detectors

~ b' At:<·urnte wnf.t:h~·~5

k! t:jtra~onic gmwrat.nT~

l tll Ampliftt\nl o f Sot.at.l if dw '\lu,tp·ai f.t:d~ l1 f the:? HHll!Hl•ti<: fhuc B ut

" d igt:'""'' of I m rrom nn iuflnil61,1• long i~ 28. ~t!~ip,ht fitamcn t.s, ry l.:(Jntluctins wh·(~

2 · .. fO n \Vblm:~. what iJ.\ l}'l(' fUI'r,·~nt . in

.. ~ .. in: '1

The rnr·lil}ld int<maitjc.< of a mn.gnetic dipol~>

ttrl\enn;,\ vury in V(IJ)'f.!:t~l.'r· HH

i ~· } I A

~h: Ill .'1

f\·; l 1}(,1 A

::d:· ! 001) A

l fl) H'' lb l H'~

it•, H

•d• , fR

... \•twn' H ifi t.hn nsdiHI diswnc'.' () f th(! Hhtxt~r·vatfcm poi nt fron·, tiw c:mth"U' Hf t.ht.~ loop.

tH.lTO· K·GNG I 8 · A

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~ mw.-3!'JTf'R .,<a') !liT )i'troll t1iFFII24. .l + aT. K "' =il I l 3"- ., . 0 ·/! I ,..., i ...... , .... ,......... f' ""~' : > ·II '< 1 :> ,,, \!'t'! 1 ,. ·r . s

l!fi'laii«P t:m am ~ ~-fimmr:! l?.4! :;mu

ffi!l' ;Jn ¥RT ii. rMl z'i

i a 1 311f~ 3iftra> 'flt'«i> ~ ~ t, !

•. b) ~' 31ft.rns srfr\'mJa>n~ Mt ~ i

l e i ~ f;; srfu 3l'Tt~ JW l!frr<lo~o1<n ~ I

i d l 3li!~ i!ill ~ ij!Ni!>OI M ~ I

26. lf;a;R c:T!f ~ fBaq•::ru• 'if Fti\1 ~ ?

/a) ~ ll 31la!r..ti ~~~'I

lcl cos· 1 [~ ::: .. ~.'J a ·..t

1_ .. J:l:~ ];Rf !tm $ill ~ J1R l!l!l 3f!:rl1'IFI '!ff'<l<!ir<ro 1 Hi~

. , i· a$ --"' -..~>. 11 ""' ~· A , W. ............. &ro l ·'"'"" <'"'' ~"" ""'' ~ r l l · bs

{al (I <. b ~ p o< q

(bi a .~ 'I

(. ~::} ll > b .3!'1< 1:• :• q

(el i a ,. b Jl\< 1' " '1 • w !!ill ~ ~ ~ ~ mlicll l'IH 'if I m <Ct ~ <R 'J"'"<fim tli<l'iffl (fi'f llftTnot o.

2 • to-G \Vbfm2 t.. <1'1 lm' it ern If~ lltll l! ? 28•

Ia ) I A

lb J l 0 A

lcJ 100 A

ld'l 1000 A

/bl <i®ks<il k it 3,-Riful; ~

(C) ~l'f~~

!di ~ ~ ~ Q~11fUJJit ij ~ Q~ 1lif lir-rr

(ni ''.D~Pu

(b l J J . ds = 0

lcl V. B "' Oi•n

I .... - ,j[)

I< 1:1 ; ,J ·• .. <ll

~ 'li<ffl'!v'i <:IClfa'!<t <i7.rn't T'i ~ l?lfJ t ~<rwl liWf '<it ~di qlmdi if !!<tnT ~ ~ j

f-'1;;~" fflR <lfu;m i'i lMlt;;l ~ ll\1 ~·lim =rtf ·' . ~t?

(n) ~&;; ~ ~

( h! llfuj?" uWil icl ~k ! d j ~ !lll1fu;

wait\a ~ tifr.n <t\ ~-m ~ ll'im$ «jiifiil1<i <lftaf& ~ -g ?

/a i R3

(h i Hl (t:) H (dl r· ,[{

N-OTO-K-GNG { 9 ... A)

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29. The ii1r-1.or>~' !ll{,cLri<: litdil 1::1; und mngn~t.lt. ::13.

fi~ld n. <•~" a Hen.~im·• dipnl;, dim~,- in tim"

rlhasi- b~·

fn' ()'

1b~ 90"

1.(:) 1 ~n-·

:.d ~ l :?0"

90. !\ plan(r \VHV(~ ir; lJJ'0~1ag1tting in a rnBt.tH'in:i !N.

ch.arsH;t'.~rizcd tn• f."" : 2·2p;, ~~ .. ::: i a~·l,.l l.'1 ::: 0.

\Vhnt is t.ht·~ ''(t~U~t nf f\ in rmiirn. wlu!ln th~

.. ~!ectnr; n(•id ~5 givtm by

f.-~ : JO (.~(}$. ·:~~ x lOW t. ·· ih.~ll v/rn '? '

{a: 1~0

~h; if>H

k} 17>:•

id·; 2()lt

:J 1. \VlL~d 1 •.J~H.: >:sf T.ht fol h)wing p;ti r~ i!i ;H)I

c<•r,.t~~:tly mtttt~ht}d ?

0.>~ lntt'lnsk

C<lntri btltinn UJ \otJIJ polarization in tl d i(~h~1.:~ r i<.: mat..t~J·iul an81 u~ ftum ;mhu: rnufe(:u h"s i.e; r.fep~ruJont ~'n temp<.•ratun~. At. Lt'~mJ·Ku·u tun~ abrwt~ a r.ri t.it.ni tt~rn p~rJ~tun~. hnw dons pubtrizntion vn.r)· w;th t-.:~mp<~1'atur<~ 0\.) '?

;:n:• T

T ·''!.

Cundu<:tivit}' irn:J.-ell :trC~ w:t.h iru.:n:-:n~ing

t t•m peratnrc .

f'.nndr.H:.tivhy lncr~ases whon '-'t~ry smalJ nmou n tB o f dnnor· nr A.ct:t~pt.ot i rrtpuritlc~

""'; ndded.

<H.'Ct'!pf.or inlptuit'~*

·~·:.n d u~~tl't''ity nf n-typt~ h tp~hN'.

in silkon. nnlu~r~ni ls

Whid t <>f th<; ab<oY<! .. lnloem(mt.a :lre "orred f<tt'

t ht~ (;cmd ur.Uvtty or .;:• s-~.tm t{~onduct.or '?

i ;~ '; 1. 'l ltnli R

fbr I ~n1d 2 ~lnly

i c:: and :> only

icb ~ rtn<J :~ only

~·)ml<:onduc:toT

((: .! Fifth gJ't:>U}~ impurity mHtJ.)riai

a5, Tht'.' cdlli:lent':}' nf t.hn ~I)IUT l:dl d!~JR':ttds U)lfl!'l

! 11; :ndch~nt n~~ht inti~tlsh.y.

\ d j S<"rn ~r.xmduc.C.C• I' r·u~i!~tl .. ~Hs ch::~n~(4!lr~:; with ( t"m pt~l'f)t:Ht'('

32. At (>ptif.:~ J ffCQU{Hldt~s, cnnt ribut.~nn t •)

pohnb.u.t~r:m in n dit·!Jt~o:tric rnah~rlai i~ m.nitl.ty

N-DTQ-K-HJG lC

th:• l.ht: janct1on c.apad~ancu.

.: e i m 1 n•H'iT,s c.aniel' lif(,t.irnes.

\d i mn.fority c;a.rt'itW Hf,~t.lnu~s.

\Vlu~~h nnr.- o.f tl1'~ fo.Uo\~~;·in~~ :.;t.:ti~m,mts js nut ('nrn~ct fiJr a soft. nu~gnf.l't.1{! mat~rinl '?

! n: A ~~)fl mngnetk n~lltl~riaJ ifli us~d in a tY'anstOrnu~r tu; a LXW(~.

fh! A .':iott mag~mtk llU'it.f.~ri~)J haR high v~•lur. nf inilir.t.l p~>t·mcnhilil.y.

H'; A ""t\ mtW:rittl h11~ high ''ddy ~urr(ml ios~(f'~.

: rJ? ;\ ~mft milt~riDJ htHJ lt;w hy£tt~r€'!tds

l<>ft~(~~

------------ --------------------·················· www.examrace.com

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~ ~ l'i; '!:.'·Tim ~-ffi'!l f.li ~ <J"'allll :~3. e~ H6 it wm <J;ffl >l fm<r.n JT<f{ ifni ~ ?

( a ) o· ib) 90'

(c) 12<r

(d l lllO'

................ _ ....... _ . ... .. . ··-·· .. ··--·1

~ ~ i!j q<ft llUJ3o>i <!>1, ~~~it lllm!R ffi<l ·~ r.n.R <lffi!T t 1 a'JiFrrn; ffi'! u Jm ·nil! <r~. t:j€l<!HOI 'ffftl CK> as ''lll'U l!\il fi'Ol'li'IT ~ ?

i ui ·r fb i 1'2

h~i T-2

<d i T - 1

34. Rt:ifrlf6<1 ~ IR flnm ~ : ao. t?<J) ~ m t?<J> <mt~ ii mr~ltj ~ ~ :;~~

£, = 2·25. 1•,. = I 3ft"{ cr • 0 ~ ~ ~ ~ l

~ ~·~ E = H> cos c:1 >< t010 t . .• 11zlii < vim

'f.'l <II radi rn i'i !l i\11! 111'1' a'!lT t: ;'

!bl I 50

(C) 175

(d) 200

31. f.! Hfelf~lf i!i ·~ <111'1 ffi' Qa5 ~("'l ~ ~qfffn :riff t?

1. 'ffftl ~ m tm~· .mr "*'a;a; ~ ~ , 2. OIW lllffi >::! mft 3\T~I3il l5l Q'§rt ij5JI ~ ~~ ;;miT ~. l'!~ '<~Tt'lil>"ffi ~ it I

:l. fufcila;'j., ii ?.J((! ~ T.l1't!\ ~ II; W!l'oi

"R "'"n as ~. n·l!'am: ~ <CI '61l'ICII1!l ~~I

31tl<~ind'> <RI arn<m!l it; Frll? Jtr~ 1l5tR) II ·i! i!t-1 ~ Wit? <.o• l 1, 2 3iR ;~

{b) m<rn l 31\'~ 2

ic ) ma:r.~ 1 31'R a (dl ~li'f 2 3!1< :1

~ !larrr ~ lffit ~ =r@

35. m< ilor i\ <:O!W flhTI :ro: R~ ~ t ;• (nl 3lUai<'Wi

!b) "hh :t1th11nm

lcl ~'Wit' ··<mf Cd l :mf-dTffif. mt~ m ~ ~fii,f•uM•

ual) ~ ss.

82. ~ 1To:11i 11 mftrcr; ~ IT{ qAli!Rot -q

i a l Jmlf.res ~

(b j f~ ~

lc) s~a(lf.ia> ;'!

(dl 'l"Q ~ t-

N-OTO·K-GNG l 11 ... A )

h'l j ~ lli!il~ ffljlffi

\ b' tifu mfull 1.1:! Jli'<i'ii ~Oj) ill~ ;;?t;r~. ilo11'1

' d; <rs~<linP ~ .o'i1o ·Hm<•

:r4 s"'~Q ~ ~ filw f.'l:::rtm~ <JXR'i " " !Iii'=! v.1 Qi!; ~ ;rlf ~ )

ra l "PP '.!"'<5lll <r~ <Ill ~ -ti ~'13 !5 ~ l'l mirnlt .

<o) ~ 4«1dl\a ~Rii .m Jlf~ '!l<lditllrlit! 1111 31ZP!R irnJ ~ 1

rr.i :;4 §14aSI4 tR:!'<I ~ :n<J ~ URl·~ ~ ~ I

tdl :.rti W<Iiful ·l<''"i ~ f.,-t thttmm ~ M ~ l

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I ;~7. \.~fl·u:n .~on, m~t1t~rit,) <> f n~Hi~tj\'1 1)1 l.u.

U· l " \o · .. > ~i· l'l\ il' ll!tt:rl in •• t.r,•nsform<,r. c~dd,,r ~:urn.~m f(.~~i:t it. I OU \V . \Vh i\1 in t}u:-. cdrls ~tn·rN\1 io~~ in tht~ A~lfn(~ 1,,,-,,~l~•rnH:r, if lhc con~ mah~ri>). l r ... ~slst.ivity u; U··1 x- Hrt; !1-m '?

;a, lliOO w ;\); 40il \V

!(" i l~ w \d! 6·~ w

!lS. Huw rl6 t.h~ eQ;\duc."tiviliC"s 11i' :1 .:nnrl.uctnT and 42. 3ennc.--.ndui:tr,r ::hnn.gc ($t(IH\\roil.v J if t!u~ purit.r u( !h£· onginal rnntnr'i:.l in f!.il:Ch C313(: io imp•·:,.v,~d ':'

: ~; C1')!\ChH:l.i\·i t,y l}f t:<mdw:tor l l\('l'\~~hH.,~ \l;+B li." :.h~H <.lf $f.' lH itmHhu:tt) l' dm~n~$u.te:;

; d .: Conductivity t,\i' <'I'H'u,hu:tm· dt:'N'f:'Jm~~il whilt~ tJu\1. of' ~·wm i<:mHh• <:tJ.II ' in<.:re-m;os

~10. 'l'hi~ uv,,rnHn httl.()(.•urr<d l)tihfl I'\H\<''.i<tO H~ ~; n f

thf· iB/ W· \,:~~\'(~ ~i~nuJ xH:. .n .. ,ii l \ . $i ll \w t .,. ~;

l'h)m~>v;;.i of mntt.~rin.l fi'orn n sotid t~athodl.• b)·

bnrnb!t:-dir.~g with p01~itjvt' ion.;; fr.nrp .n r~lf(~

gn:-; d~sdwrg~~ i!i t:a1h:d

Tht.• pyrolys!;; ;:.f .iilftnc :n 6.'9'~'ln is

dt>.&r il;ed by ~'iH4 .- 20~ - ; SiO~ • 21it0.

'['hi~l ~·(~~('Lio n 1:1.-tn t.:tk t!. pltll·t~ nr. trl'i'lln

(t~!nP·t.":r~it\lrn. liO\t.'flvt::r thr.• ii iJllJ~I.l'tlttl i..; ~wat t~d i U abmH !.WO II(; 1.(} ·~m n I m~ t.l,.

hight!'l'

4:~. Jn pa.~~!V4!i!m::: what typl~ uf layt~r ~ ,; tiJrllH\<1 <.'fv~~l' tJw d~~v~ce ?

,.!\:~ ?.l f.i rut

Wltat i.< H:•li coollici<'ll~ CH1,11 ~<JnalLo? iwht'ro N = numiJ(•r f'l i.''C'Hlduct.i(m t.•h:dron~ J.&et m3 ?.no q = chnrJ:'C' of llO c·lf;t'tt'On l 44.

N··DTG·K GNG 12

Wh:t.:h ()f tht~ fnUGwing 1s nul tnrn:ct f()r ;~;o-impiantatluu ·>

<b) tmpuriLy lnyl!rs rnn be introduced ill rmy order.

1~·: [rnpu r it.it!'S cun be.' ini:rr>dut;t:-.d uJ~(o rmJy d fl1lHil~ df:l>th bi:-i(>V.· C.he 1'!>u.d"lu:1:~.

~tl! B(:pth at whit:h i<Jt~~ a.n~ irnpt ant(~d cnn bt• ~n·t~('i.~t,ty c.rJnt.rnlled .

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............... _!

37. :1li o· 1 " w·~i n-m ufRm!lliffi a; em~ <rrn1 ill!

qflonfll~ ~ SfllT1t i!RI ~. <1'1 \I!R Om·mR 100 W t 1 '!lfcl ~ !!m! *' !lflr~r 0 ·4 , W"6 n-"' ~ <it ;ffi\ Qful,~~ ~ 'li1n tlf{l-~ lRll t ?

!ai 1600 w lb J 400W

(c ) 25 w id ) 6 ·2 w

38. !?a> illffill ~ Jlddl(1dl mt (ftflfi'<lli!) ~ ~

~ ~. mt !ICtrcYi 'llJTl<'% Ti 'Iff ~ ;6\ ~ ~ ~~ ?

I a) ~)udr t lbl M ~,fr g (cj <rr..r.n ;fir ari'!1!lffi ~ t ~ ;,rd<rli'ldi i£1

ll'Cffl ~

(tl'l 'iliffif$ *' il!(1dldl ~~~ # ·JI'IIf<!'> 3ltl"<~Tciil'i lfll ~m ~~'

39. :mT <1'i'll :ri'~n x(t) "' ../§.'A. ~in hot+ ~~ ~ <ii1 ~ <il iltHI'if'ti "'m'l R<<llif't'tl t ?

{al .,

(bl ~ A cos <:>1

(<•.) 2 ;\ sin t~lt

!,d) 2A2

40. i/fn "J"ri"if; inul f~ JRW{ '!(ffiT 'II ?

(~ N ~ €11'<'!':\' 'S'R'ol'¢'1 ~~ !&I m3 ~

q =~ail ~ tl

la i 'I ~2

(bl ! I

(cj t Nq

{d } N~

311am ~ ~:; " £RmTtr; ~~ a. 3lfutn'R· nm o1<1 ~ 1i ~ Ql:T:!l 'ffi f.ro;rAA ;f.! ;;m m t. < (a) ~'<'! 3lF.J7TtR

d:·l f.r!lii'!Ul

lcl ' 31Cl<t?lti01

tdl l!><'l ~

~ il fu<r.l ill! <ll'<·Jitr<l'G-l

SiH• + 202 -> Si~ ~ 2H10 i;RJli!Um ~ ~ I

'!:lit ~<IT 010! OJ(( 'R ~ <mxil ~ I <rml<! ~ ('l'll'llll 3oo •c o.n 1Rll' f.t;m ·3!10l t\

i o.) ~a~ 3llW> fufc'iiln~ 3i1l em fQsr-q \l11?!

~~ \ b; 3li't~;i7i<'! 31i~w T'fffi ~ 31fmr; <rll'f'!<fl <!!I

!Q;r<J ll1'v!i ~

i c ) m~>ff 3ifua; a IHI!>\11 cCi llPfiT 111'<1 lm"~ ~

! d) :W/~ 3lfum JTRi:Sl-\~~~IMl $ fi't;r..-1 liP('(

<!AA -~

f'ro-ilt;;<MOI ij <'il'tFl 'R fur<~ ('Rf, l!i\ 1ffil 1RI\\ ~ ~

iai fdt§t{rS: 'e\) qx'?.

t b.o tl1'i'roi 'R<t

'c! um~.lf.ll!; ~ ~ ~fu;o tmr

i.dl ~ i5! 11tr.

« . :l!!lr'i-~ · ~ !ffi? f.!t;;lffi~..; /i 'il mt:t m m!' "f!ff t ?

' a; ~ 1!'5 f.r:=r m liif;II ~ 1

!b) • <m'l f'.,J, 1ll a;'tfl' l'i m l!'rot 'l!1

1 d 31'-gl?:m lffi 'J'O m :%)t'l ,:lrt.l ~ l~ illli l!iro <!Rim '"' .,;m;, i:\ i

1di 31m ~ 'lt''<r$ cr<li ~ lt!i1? :;;rii t :rn fl: .,. ,, ~ "" ..

>~ii-"T'ti jq\'U'f '311 mf5i'f! t;. I

111-0TO-K·GNG i 13 ... A l

"""""""""'""""" """"""""""""'""··---------- .. --········

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4&. A rcg,lawd d.e. Sllflply <1f 12 V in obtained 48. ft·om lll\regulnt.ed d.t. ~upply having peak value or 28 V ltntl p<lllk··lAl· J><)IlX ripph• of

6 V. Wh>H i~ lOll mftxhnmn po;owe r di~sipatior, in the regulAt1on for nn (1\.ltpuL l:urr·tml. oi 11x:=2A '

ia\ 32 W

lb ) 26 w rei 24 W

id l 20 w

A J Jo'~:T can be used 03 !I volh•ge vHriabl~ 40• re•iswr (V\' Hl. VVR opnrlltion is rda l.ecl l11

(.hi) vulue !If vl).'l in compurison tl> thtpirtch <ll'i' voltug~. anr.l

1!11, reHi$\:ance i~ h~lW<o<m two of lh~ t.ermi nnt~; ()f ,J'pJ;:r.

Wh;lt. nrj} thc.l,.!J: (~ Vttluen "!

1.n:1 Vn,; ;. Vp, rim

(hi vns < VJI. ''GB

i.e) V r.lq <. Vp, "us (di

11/hid> nne of the f'ollowinf.: sutl.cmonl.>l iw (;()fJ'(~Ct '?

i>ll PHOM containg !l Jm>gramr~•ut.l<! AN J')

nt'l.'ny and a fixed OR arr11y.

ih) P LA contains n fixG.cJ ANU nrm)' tmd 1\

programmable OR. nrrny.

(cl PROM <!(Jntains a fixed A:!\'"D 11n-t1y and " prngrammoble OR :nTay.

!di PlJ\ contain;; ll pl"OllmmmAIM AN[> arroy snd a lil<od OR lll'l'l\y.

When l.hc~ two :nput5 lo n cnrtnin dillC?.rcnt,aJ omplifier ar~ ~50 !.V Mtd ·• ll:\0 JiV, the <mLput

is 2 V l~nd v .. ·ht~n tht.;'!y m'E~ in<~n,nsed t.o •U50 ~tV nnd ~ !f.lf>tl J1 V. the oulput incmnlll!d to !HI09 V. Wh at is th., eommnn m<)(JO> '!

(h l li.\

!d.l 1000

v,)s '" Vr•. rJ)S 50. An the number of ~t.ug~ ... ~ ur~ incrt~SU~od in n

multi~t.ag<' amplifier •tll• 47.

J. overnH gsitl incr~ases.

·1. ~!anility decr~.;tSes.

!;, di~tnrti<Jo reduoes.

In the circuit, whot \& tht umilt<lr current? iai 2. 3. 4 erul 5

H.J: l and 5 only (b; I mA

!Cl Ill IliA

( di 100 rut\

N-DTO·K·GN(i ! 1 ~ .. A

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.............................. ____________ .,..._ _____ .,, ................... .

46. l!'iil 3ll'll<lflli1 d.c. !lnf<t Rartf ~ ~ ~ llFT '"1.

28 v ~ lm.R-~-~ ~ 6 v ~- Q<!> 12 v ~ ~ taw! d.c. ~ lirni\T t 1 loc • 2 A

~ am ~ ~ ii ~ 11R!; llRRo! i'RI1 t ?

(a) 32 W

(bJ 26 w

(el 24 w

<dl 20 w

46. l!a5 J•'ET 11il Q<!> ~ tR lriiRitrdS (VVR) $ ~

if lll:lPT i1t <mxll 't I VVR liUifl:f ~fbn -~

~~ 't 49.

l. ·~ ~ if>! \f..r.l't 'if v 1'18 itil llR. 311-, 2. llfilRro. ,JJ'I:."l' a> a'! ~ ~ 1fur ii ~ I

-q 'IR' i'RI1 t ?

laJ Yns > v,,, ros

(b) Vus .-: Vp, rc;s

lei Yos < Vp, 'os !dl Vns • Vp, 'os

(al PROM -1! Q<!> lti'lltta AND ~ 3l\< 1!a5

~ OR ~ (!'1m ~ I

(b l PLA ii \!llS P-!trrt AND ~ ~ Ql!i

~OR~ l(ffll ~I

(c) PROM il 1?<15 fiw.l AND ~ 31\t 1!a5

""1m OR :J1RW o:)<n ~ 1

! d.l I:' LA il !r<!> wuha AND 31n2W 3i\< t!aS

~ OR~{Irm~ I

fllml fa'l)tt !!<!tla; m it F-mli +Go ,, v 3lt< • J 5() I' V tR ~ 2 V {\ I Jl<f f.!avii" <m ur:J<f;{

+ 9{)0 ,.v :Ilk + 106() ,, v ffl;:q, mrnT ~ 1'1'<1 f~<f

~ 2·009 V i;1J mrnT t I 3~ tam 'Cffll t ?

(a l I

l i)l 10

il~) 1.00

id ) 1000

47. +lOV y

ISO. ~ !«<Wai i'i :ITo!! 3lawr:ffi <t.\ ~ i!iitf~ ;;mil

~ 1'll! Qfulw -1!. ~ am ft<A1 ~ ?

!ai O· l rnA

lbi I "'A

{C) 10 mA

(dl 100 m.A

N-OTC·K·GNG

I 15 - A I

<lli'I a~m ~ m t 1

'l1fffi5 l1fuR ~ mrnT ~ I

cfg ~ ~ ':lTfri'r ~ I

Wlfu&.c l!1ll 1?1 'Jill'!! t i

~ aSJ~ rll :ill?IT ~ 1

z. 3, 4 :Ji\'{ 5

rtmn 1 ~{ II

tr;;m 2, 3 3ft< 5

W<rn 1, 3 3fR 4

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························----- ----·-········ ...................................................... .

1;1. 'J'n•l loo,, g<~i n 'l' of '' ti,~dhut·k tunplili~r ls 100. 55. lf tht\ •lpen IMp g11in 'a' c:ha.\~1\S by ten

rmn~EIIlt dtw to tt\m p<~rot,un~. wh~tl. Is: U:{! &ppn,-ximaw chung£t in U1c i}vcralt J:r.lin ?

til) IO•;?

.... '· (,) ~ f><>

~ l: :· 1·~,

(d } (1 ·1%

52. A fir~t. ordt~r ideal LP d1nv pm:<{i J tllw.r ~g

''"~"»<h1<l with n 1\rst. or<l<H· ic.le~.J hiuh pll~~ li!tr.·r. Both !.h<> fih."n; haV(' th<) ~nnw cut. dr ft'>'<)UI~I\t!y. The mmbinod filr.er ;,

: "t: !t ~t!t'Ond order lov.• fiU.~r.

(b) .t\ ~f.!f.'Otld tJ!'dt~r A.ll pn~~ fihirr.

{{:! :j U(~;ond (H'd6)' httl)li·~ . .IJlS.'.~ fiJr.iH',

id ) ll\>1. " pr·acrica! fllt.~t.

1. Cry6 ta! osdlhuor.

:.l W<:in bridge O$Ci lh\lor.

Whnl i~ t.lw l.ntnl tmmher t~f l"'ogr:mun:•blt' 1\tse~ iu 1m ll·lnput, Hi product tem>. ·I output I'I..A ·;

Ia ; 196

I b) 512

( '~ t !}

(ti l 192

r .. ....... ·---~ < .... _ .. :_--1;-:;L ... ...I

[) o-....... - .... ···: ~~ /(; ' ' . -............ -.

\.\1hich gnt.<· m UJf.L be )ns~~rt.~d itt the dnshnd bo.'("

t>f lht~ cin!ni t U1 \.'OBVi~rt n T~Oip· fl<>p it\l.u n

l).!Jip-fl<lp .,

1a1 EX-OH

I b) AI-<D

( (~ ' OH

fcj) NAND

57. Con$iucr the rollowin!l ~u.t.em cnt.J; :

<1 lt.'$<•nnnt frequM<:.Y JA.: osdl tHoo·.

Whkh of th1; ab<tv~ »i nustJidu! ~~r.Hini;·.,.,. <.•J.tn f>,.. ue.t~d (l:-1 vcu·iahi~ ilud if> ft"t'!(}Ue!H!}:

<">i.<dUsam"s ?

(-a j I end 2

ib! 2 t)lll)' • (r; :; :t I.H1Iy

(eli :> tH'td 4

!i.4. Jn '"'-'hi(•h r.tt.h? of t.h~ r,)Jiowinu dj.srit :}l IC Jqgie.

familuos is t.ht~ curn~nt tb·~li n fr•)rn thu powe-r

""PPl.Y t,hll lnwe$l '!

:: ;.\) 1·r1.

<b1 Eel..

tc:; M()S

f d ~ CMOS

N-DTO-K-GNG IS A t

i\ Hi-bit. ~hilt rejli~wr f~ttllirt:s

Hi flip·!l"p~.

A 1 ti--bit s·ipr,tt! counter !'Cquin~s

4 r1ip-llops .

!l. :\ H.~· hit. s~·nc;hr<HH>u~ eount~r ~·~rtdr<~~

Hi flip-flop~.

4. 1\ H)-hit. r~nu t~ount£~r n~quirt~s

W llip·flopso.

Which •:"If t.h1: ubov~~ !:lt.ttta·m .:!nt':'l ' NIH'to:-

•:<u'J't~<;l :1

<nl I ;ml)'

j b ) l . 2 nnd 4 .. , :!, ~ nnd ·I

ld> ·l i;nl)l

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51. ifl~iHI ll<!f.hn mt <:ml1 1'lfiu 1'. 100 ~ I me ~ (SS,

trm ffii£1 a' <nq ~ <mill l 0 !@1'11i'! ~ 3fnll t. <16 'lill'l rWn ii mamr. l:lfu'!k-t 1!'01 t ?

iaj 107;

!bi 5'%-

(c) 1%

!di 0 ·1\'t

!al ~Jl~1 #.c a;, RJ:T f.'tttloo!S ~ 1

(h> ~Q ~ iiD <!'11'1 qmz; R~ ~ I

<<:; ft<\'a 'il\)fC -ern ~Ill 11m!! R<<ka> t 1

ldi ~t<l'i ~ 'f(E'i t. I

ISS. R"'11'Hfun q< fitw\ ·~II? :

I. ~~ ilfrr~ I

2. $; ~'\-<j • I

8-~r. 16-~ ~. 4 f.'nlrt f'LA -q if>lfll:ii\<J

~<&~~<I'm~?

!s i 196

l bl 512

i d i 192

L-----~ • ·~--IT

Do--- -: ' • ~ ------·

1'->!!'l·l!!tl <t>'t D-~<f! -l!l\1 1'1 qf.t~ ll>-<-i ~ !ffi!. ~~ 'It; ~ m 1'1 ~ "' ~ .m 3r~ m:n • ?

! S.l I'X-Oft

(bl AND

icl OR

I, d ) NAND

3. H-C mctl ~WitF-1 e'liffit 1 197. R"'1~fum <mr-li 11< faar{ ffi)fr,~; :

4. 3f-J~li!'l ;).~ft! 1..-C illfffll I

~m ~r• <:)lm'i ~ -a llll'·l ~~ !'I\ 'II'&! ~tl ~ <Bt \ffit vgro fa';(! :;n ~ # ?

tal dhz !b.l iJI"cffl 2 • {t~) ma \ d> 3 :ffi 4

54. R"'1fftf{,j~ 31(1\\u IC od; ~ li "it ~ t!'itl m mu -i;mu~~# ?

i >H ITL lbl l~CL

( <:/ MOS

ldi CMOS

111-DTO-K·GNG 17 .. A I

l. !6-~ fct'(t'JIQ 4 ·~~~ 1'!\i' 16 1!111-uq'j fflt 31l<lt<l<fkll M t- I

2. 16-f<rc :#las: "ltt11fi . <llt " l!!tl·~ ao\'1

Jiln:r<lmrl! ;11;\i ~ 1

a. 16-~ 1'"" d'>ll<Yi rrum; ail 16 tltT-ertit lflt 1lltat41l\n! ~ t I

4. 16 ~ arm m>l<f> all Hl fltl· !7!il <& 3ild!i!libi11 tll<\'l t I

(b ) l, 2 :;m 4

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MI. lllntth J j~l I with Li•t ll smd S~llll<'l l.h~ t:orre.-::1.161. ;.H\;.:wftt' u~u\r: t h'~ ('(Jtii.: giv1.·n bolm .. · tlH,1 liet..-t !

IAJii J r.C\J'J~l it·o.J imr J

A. f.'-<,nt .-,)! hlr,it~ fiu l)

my thf1t is.: ~bid in tar~e '(Urtnl.iLicnc

H. Control logic ft>r

;. mirropr'X.-o.rit~ur that i• •till in t..ht:

<h~v~IO(Jn1t.•nl Stngr:

C. :-» ~or~ file:~ in :.:u\ c•m }wdtfot'l ~.vRli!tl\

f) . Con tr't~ i ir.1u-k f(.~r <': J>C'O)j{:C,~ t h 'l h.c;. t :t.•rl\tHHltr'h I ( \ (J

::Ct:!~:.;.lr;n~\i 1,\'

Cod., : ·---

Ust /1 alnr.p/(mt:n.tofi.on

l'lat{nrm. t

P.PROM

2. l'tiOM

if fJ r! dt~Vitltion rntio. l~ ... ~>undw)dt··h, w· .. ~ bandv.;"idt.h of m(:SSa$.:'<~ Aignni nHti.

what:~ tht~ C!tn~on'R ruJ~J f(u- FM ?

~ H ! n - 2\D + u w ;~,' B = 2(1) - i ; \V'

(ci B = 2 iVr' + I!D

~ri ~ R = 2 :W nn

Tiu: ap.cm:r-e efT~ white sampiing ocrur~ w h c;,n the ~igrs.nJ is

! ;.H ~amplmf a t ~)r~:cisc~l)' Lh 1~ NyqUI::n rnlt~.

i h~ ;.; ~.nnpied using pttls(~S t,( t"U)tl ·?.('t n w}d lh

A n c n n:L Con~idf.'r tht: fi·>Uo•J.:it'lg :

i;)i ~ •I

£h; " . ; ,, ,, '·

; .. -:: 2 ,, !~

!d.i :·; ,, u !

59. W•h;,;t i f,' th\: !IJ'pri..'~Xim n tt:~ f'('.'.'iUIUtion tn x.mlf.a 1

f~i:' l'IH!J>I.It i>f ;) V in 11 H··l:aiL DiA c~ (nh·t·!!'h!r ·~ ~<I ! !H m V

d J· ! 1·,v 'n ~ (}t') m\1

f fli J) 1 "'"

C ntnul$r noise

:.; Siopt O\·,~··load

Whi<h .-.r th.>.-.c oro 1ho drowhucko of r.l(J(Jr:.!;'Jt)fl(l ?

€:1; I ttn(J 2

fh; 2 it11t1 ., "

1 c.l I ilt\d :l ; ~I ; 1. 1 Hnd :l

i 164.

! deltn j

' ~ l E

H~81tl ta n<'t.'

·~. Hanliwirh.h u\·•Jr whkh it i~ m;:u .. •h•n~d

The noi$~~ gi~ru.~rmm.t ln <t r~~j~to.\rH''' or n~~ist.)VH com P<)hfm I. uf Jlny i rn r~ ~!dnncc~ ili ~H'(:pt)l·iiuna! t.u whkh ()f tl'lt.~~t~ ?

··:.t) 1 .!lnd ~~ fmJy

t h~ 1. 2 und ~~

£c; J. 2 :tnd -1

•di :!. 3 nnd 4

Tiu.· ~ignal to quan\.,l.Jng nniii{' rnti() ,'lf a binury PGM 5)'~tcm i~ n."<JuiM lll W Jll h."BSI !li(J() \.\-1w.t i• thp minimum numh<,r ~f bit.ti required V> represent Lhe •1uan1n.ing 1,,, . .,1.?

:.a; -I

:h} ~~t

i(;i J()

:(I; :n

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A.. <If; lll)f) it at)

~ lllC'l ~m1H; liW f.iti";r.>J m!;

B. liilli mn!mr 3: f:'!l 3l1i) 11\ !in5ra :mm'.IT >'l ~ . il! f.llt> ~<Iii;

c. ~cl 1i:r t'i t?mF.m 'liT~

D <f•~l -lf>''it f'-refim qf·~d\':ir::rr $ t'Pt! fui-or-rr mf;

F' A B

(hi :l

{ei ;~

td:• :l

l. F.PROM

2. f>ROM

:l. ROM

39. !.\-~ D/A qftl;l;t; t). 6 V f.llm m ~ Ti'rrt; 11 ma;e; fa"dr.l::r a·m ~ ?

( ll j

i b .i

·' ·

1.0 mV

l mV 100m\'

0·1 mV

itililrd>l•rll '{<!

I Ji'R 2

2 3."1< a I J;'\o: :l 1. z .mn

~ n~·~31~.

n ... n~. w ,. m !'f1r_,, mit, <i:l lfl: til~,

F M it; fffi! ~ lF.l f.r,'lll >I'm ~ ?

ia ; B = 2 <0 .,. l ; W

ibi B; 2 i D - n W

ici B = 2 tW • ll D

\di B ; 2 i W - I; 0

62. !lfumr-r a, ~{H ~ !i"'R' f.'inl ~ 3'!il fur.r<'!

! ,. ; m :;r5f<ffl~ ;:·, <R ~.rn fa.<tl ;;~rm ~ 1

I b I ~ ~ it; ttio;~ mt :ltftfm (!){ llffl'?.lfi:nf fu,?.ll ~-;r tl :

\<1 3&. gf?m!'i:rn l<'ml ~ r ! t.1' ~l.J:.:r llftr.;furr ~)m ~ ,

6.1. f'rr~t~ <R ~ J;;f_~tl' '

I. sffi'r~

2. aT1mF (QVJ"t

:1. ;i'r'-'r.'o!lTA f.rzmtm -1. ~ ~~ fiffi <r{ ~<l •mn :111m ·~t

11<6 llfrR'm m fuffir ~#.rnrm t, 11\l'lm.n 3l<lml' * :31'<:!1

"' ~ it ·t~r f.ffimrr "-.rr:!"IA'I # ?

(" ' "Ri1 1 3-lf<: :~

(b} !,zom:~

!cl ! . 2 3iR 4

id) 2, :J 3ffi .j

t b.l 5

N-DTO·K·GNG (19-•\1

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65. A ! ld-1?. •in\t.~oidnl !lignhl iN id<mllr >nmpl(td 6il. '" lf>OO •ampl<>sl• nnd S>lnl~l led $igm1l is })ll~~·~·l threyugh nn idr~ul lo>W· puss l'llt•:r wit.h

<:ut .. ,ff frt"luonr,y J;r)O l!t.. Wbtl is Lht: <>Ul!l\il ~;gnfl! fn .. ,qu~mt·.v ?

Ut i Zem Hz

lbi 2:\0 Hz

ic! 500Hz

Hll 75U Hz

ConRidt"r t.ht) fhllowing BUil.tHr.c~lllS . j 1"1\t_') nonualizcd pc>wcr. S M ,.1{1 } can ik'! dv!incd I' as Lhe 70.

1. lnst.m'lt,."lUCiJU~1 rxlWf.~T divich~d by tht~

nHl.Xin·Jum pc.1W€~r i11 th <~ ':ifc:uH.

2. Tirnt~ '\vorngt~ Jlf.IWt~l' 1.tun (tf>~H.•c.t.J'8 j n !t

1)tJU <}J·nn n~*l~tor.

:l Tvta! I'''"''~' eon~\un od l.l.Y !.h(< dreu.it ~ l ivui(HJ l:.ly u.u! UV4~rUff.O (.H.I\'1U~r (:omnnned I' H1 that \~ tr<.."l.Ut.

•t Tht~ m11:an Aqwu~ \'UhJ<~ uf' t.1 t ). l i l .

Vihich of thH ,l)l~Wf~ «t.at..tmwnts u;/urt.~ ,·orn.~c:t ?

( L\ f 2 m:ly ,·h; ) ~mrl 2 ;e: ~ And ::)

!d) '1. ttnd 4

Ci.;n~kf.~r ~i:.: dHl't:~rt,n! rnc!~:\l'U:,~f; u~ith I 1

l'e!'ipt!tl.i\'~: pn:~bnbiJitit~.ll p 1 :::::;- ····. p .. " .... 2 - 4

! 1 l P, : ·- . r•. , ·······. p, ~ ···-· l'· •· nud

· R lli ·' ~· • ~

\here ~H''-' 32 outco mt<"J.> fkt~r S(!f.flnd from 4\ sysl:<~rr,. What is t.lu: rate of inforroiHlon H ?

'at ~ J h:ts.:~

Au adnptiYt'- delta m oduhttkul cliiTt~1's frum u dr.l t :1 ifmdul;J:tton in thnt it hns n vnrtabft)

€H:• ~nnpHng rr.u.t::

~c! .::1H.po t. h!i. nlt£:

; t~·: .::./N r·;•t i r•

Jn NTSC {:t,iiJur TV tr·(, nsmi ~tf iHn, l :.lm tnan<~,:· .~{gnu~ i;;; f~.xpnm~ed us

:. " j ! " H ·\· c .. B

d.l) y , O·aOH < t} ~!)f~ ., (t· ! I fl

U:: y ~ 0·5HH 0·! IC , o·:wu :d', y ~ O·llH • O·::IOC ' tl·59B

!h; •t•mE: r1~ TOM.

l<~i " cMnbinatirm (lf VDM end TOM.

7~. 'IlH~ ~!t~n (>f th~~ radnr nnt.t~nn£, a f' djs h d~r:ullN('l' I rn l~ :H1 dB. \\'hctl i." t.h,~ ~~in l'Jf lht! radnr tHlH:nn:l ir diah dl:\uu!t.~r incr(!ilf!:es IAJ !0 m .,

iti :. lhc Mhcmt! \Yherc :fa.tne ~;an1cr rrcqth"OC)" Ul USt"tl for l WO diffcn.'JH ;;igt\tlls

If X un

1e i fx.Y \:c ,, -' " fx l~ l .. f ' Y'!' ~·b• fx r i•. yl = fx !~l fy ly t

~· i: ; fX.\· tx, ,.,. .,

~ rx (xl + fr•.v l ~ d! r 'X 'X.Y " · yl • f)( I Xl .. fy (.) l

N-OTO ·I\ ·O NG

~.i l l :: .m n.; :'.(1 •ill !c; ~!i dll

hf! ;·Jll) rill

the m~>dulation St.'hem,_. ,-.·hici' giv-es Uu.~

!"w'''l p rohnbili<y <>( error in dntll lr.:"tn~m}58.iOO fc,r aU siJtnnl -tt>-·noi:H~ rut.w ~~

!a i :'\!"-;K

ill< I'SK

! ~·: i OPSK

;d< I'SI<

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65. 1!cii I klh ~· <itiXIffi 1500 Jlfuiwr l!fu -~ 611. 'R 3ffi!~re: 51fnufar. fii><11 .llli'lf -~ 3i'R ~f.!ftffi ~ <Ill i·~ :!i~'ff soo lh ~ -~r.J t!ffi :Wi!'JI ~-111{(1; Rr.ce:~ l) 'fr 'llftn il!mr '3l1nJ ~ r r.m~r ~·am~?

(8! 1/i..~lh

(bl Z!iO Hz (C) 5(J(J Hz

(dl 7:$fJ III.

1. tfswJ ii :~<filf<'ll<m ~lfffi ~'(1 f<i'~ ~t?m:P 70. 'llfm a; "'-'~ •) ®n~ (.! ~~ ~ 1

rtllll' 3l'mn ~ :;it 1!cii Jir(,l ~tl'm i!i W,fil;

~~ ~, it.; ~ ii lfu!&l t<1 <!"dl~ ~ I

~ 'li wm Ji'I<Wr 'lffu; ID'<! i'am\'3rn. ~o:: ii \!Jtffi ¥1 -mffi m ll'l r. <~Rmll«! ~ ~ tl \~ t'; i!; <Ill tr,r.J.j 1;!'1 ffi "'" >'\' qi':l~ f()

mffi I,! I

~'ill l!i~ ii a m mril ~ ~ff. ;; r a! 1r.a':-! 2

1 3iln ~ :~{ ;;

(d) 2 :!.'\~ 4

'"' ~ ' ffR :aqa:musm af~CJS ~~;; (tr~\l"'' ~l\ )

ial 'ltw ;?I ~ f><11 FDM

ibl ~~ ~ it ~ TDM (f.; FUM 3l\< TriM iP! ~dJ:;R ~ I

I d I ~~~~ ~ s,r,'f \!$ ~\ ~ • it 3ffill·31('lll

~a>rii ~ fur. 3'1m mr ~ ~ 1

·!!fa X sit.! Y a'i ~ •!13<\'ra <ll<ilmtr> <R ~ ~ ~ a;1 3'1'r.!rr '!i'l ~.;.~ 31\'. lW>;171 r.r2 ~, ~'WI • ~rfi:lotRol m ~M'"~ fi'rm ll'l '4 QR$nf'r<l ~ ?

(a·~ f~·'' I. X. ~{I= fx i.x} ., f~, (y~

~b; f:.:.Y {x, ~·· == fx .:x) . fv iy~

lei fx.Y lx, y:• = fx iX! + f":' cy~

tel) fx.Y \x. y! =I); l~i ... fy iy'o

w fuf~m -~ 11< ~~< ~ ~ ~rfllil>i'ile

l ~p~= ... ,

I p .. ;;:: ........ . ''I az

(ai :n hitJ;is

{b) 62 bit#~

i<') 78 hi(..Gis

( c1·: ~Kl bit«'~

~ ~n~! ~rr~·'"' ~"'~~ ·<ffiPI -~ R:rer ~ t. mmr. '·"} lif''ffil>'l'! ?.:~ 1'!'{ tihl'l t\ j h J q't, :ll!rtltl -::!'< '(.t'.?i 'il i~i fl~ f.R: o{ m i'rffi t. 1dJ S/N 3qll!ll m l1r11 ~

NTSC {:[,., ~'ffifa,,!., ~ q. od!fil.mrn ·.ffiM tfur.;,;n fciffi ~ ti Jlf~ fi1;m Jflffi ~ ?

;_ai Y ~ R ·• G • B !bi y R O<IOR •. li 59G + O·llB

w Y ~ O·imR • 0· tlG ~ 0·30H

;1fi Y = O·llH + {)<$1.lG + <1·5!JB

I m <m'<! $ ~~~ ~gf( tR;;rf i'ffi <'!fu.l 30 dB ~ I ~i!H ~ it! Mflv a~ ~ 1ffi: ~'ll ~ 10 tn ~ <m ~'3!ml ~?

:a; ;l dl'l

;b; ;lO clB

•.e; !50 dB

(d; :JOO dB

11:>1'1 ~ • '?i1'.5f'il Ct! ~VI 1l ll1TI ~<l-'6 ~ Jl'"ffl1! il; f.w. ~(l'll ll!fu<fol'll ~~ ~ ~ i'

iHI ASK ib'J FSK

{ (: i llf'SK

ldl l'SK

N-DTO-K·GNG I 21 -- A 1

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74. tr. l~ demr<ul f.<> bulld u t'i pplt.i «:m .. mter rrltJt:uhu; !S. 'l'ht~ minirnurn nmnb(tr

tlip-!lops nHtu1n~d is

i \.J.; L8

•h• ~j

{( l !;

; ri; ·I

75 . TnP. •L<>ck is nulhin$1 bm a ""l oi rool'"fvetl

76. Cnn:ildc.>r l.i'u: Jbllnwing ti:rnlli- whkh ttr~) used to 1ndhatt!- !ht: timtt l» k€ro whn~~ t~~~u:'lltlnR I

I \.Vhm i~ tht: eUt'l"~\<:1. StHIIJ(tOl''t'• ~\{ ChNH· in thr' . <lf.l.'l~nding nrdt1r uf tlu: t.inu: t.nk(1l~ 1:;~ · ·~nd .. :· '?·~

• !so .

The rmnuu um n umber nr lW() inJHll NA_~tn J gnt'>l' needed w p;:rform th() function of A tw''l: inp ni <' R gnu, i~

ini one j

!it ; h ! t \;.•c;

i r:! I ! '

N·DTO·K ·G">iG I 22 A

CllfHider the fnHnwing Stlth~mtH\tS :

Tht~ idesJ of (~Hchn tTH'!mory it' hus1..~d em t)u~

(. prc>pert.y of lo('ality (,r r~(¢'J'COt't! .

2. r~kt. lhat (miy f>J'ogrnm i;; frcqu~nUy.

:~ srua1l portirm t>( n n~f(':n:nc('d ruliJtivuly

3. ~~uristic !KJ..lO ruiv.

,1_ !bet lhst. refetenn--s gC'n~roiJ .v tend lJJ

du~tcr.

Whith uf the abo,•e ot.at.cml!nl3 are cur11..:l ?

(a ; I. "1. and 3 only

oh; I. 3 ~ nr.l 4 rm!y

;d ~~. a and ·~ unly

Tht: f);Ha huti ;n tHl R-085 tllil:rOJH'I';ltOS&or i,~ l~ g1'!H.Jp nf

! a ~ night bldin:~<:t.t(lnaJ Hn~$i. thnL nn' Ul'i4:d to ~ ran~thr 8 bitJ~ iH:ftWt~ml r.hn m)<:n-;pru<.:ns!;Or' nnd it.r; JJO ~tnd m~:rmu·y.

!'b:; dghr. lbw::; U$(~d t.v trnn~ft.~r dnt.n llm,·>n~ tht: r·t~g·f~tl.•riL

fc:: eight Hnld'n~ct.~cmnl lino1.1 Llwt ar') uBc~d f<~l' l/0 dr!v·f~~t:~l?..

f d: ~tXt.t·t~n biditt~<~LimHii Hnt'Jd thnt. an~ \UU!d I('Jr do.ta trane.f~;r betwt~tm Shl1 rn••':'i'pr1JC£•Si\'l;ur und tt'lf.?I1HlT')' .

TI1e l'}Qft=) m itrorJroc:<~s.or rt"'1ll'Qnda to clu; pres.'t:n\'c of an int.nrr·upt

il> i M '">(m 31; lhe TRAP pin becom"" 'high·.

<h; hy ehecking t.lw TRAP pin for "high" <l:tlUs al ~ end or earn i<>l!li"UC'I.ion f(·lch.

lc) by ~h.-s:king the TRAP J':in for 'high' ~t..qt.us at the end nf ~~('CUti<"n c..'J' (!rtt h ;lt~tn.Jdi(tn .

• d :• by <:hec:ldng Hm 'i~t{AP p1n f(,r 'high' .~:r.au;s at r(~guJsn inl.(~t'VnJ .

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"11'~ffi) l f.\ ill 3;f~·'if;; l'J1t'rr':l' <Ill t~ lllfu'n '(t I 78.

f!!R'Cf ·'Wiro ?{r, '"<J:iif"! 311~ 'ff<!i.ll lfUi ~ ~

n f.!• .. mfa<r !' 11 t1trn ~rm ~ fu3ltT *' ¥1 "'f, 1

~ ? I is; ;;r.t'm1 noM~~~ :)ii!'{IR <Ill <1:\Wt: <b! :)J"Rftfii l:U crff 3i"<nn=t WI :u:!vJ1J 1 k' srmf.m R.'l M <.f<!l 3i<HTfl <111 <1'.(\"iJl.l ,~

•••

' (di 3rrd:~!1i 0 / 1 <'lifo ~Hrt'l 1111 ·~

f)r~ml.~?! ~.:ii '~.': '\i·m< m)l~!\? :;n rdl :~~:m a; 17 9.

:1-~!'f: a; mr.r li'll.' •n: <l•!'l:ii <fit W,tm m<~ .~, !?.'i! I ~ f<T>r. ;;rr.ll ~ :

l trtf.1:r tiro

$-iih ifHl 1M: m:~ ~om ·;m, :J;r{~ a'•~• ~ <r?,) :W,!W'i

<md': )

I:.U :l· ~-.1

ib ~ 1·2<t

id :!·'I· Z

id r j .;j .:.:! • so. 77. ;:'; ~ OH ~ ~ ll'i!lltf itA l'l<lllftll w-:1 ~ fRt!

~ Rij!ll NANO ~ ;i;1 ~ Jlla'll.f<ll <1~ am • ~ ?

N·OTO·K·GNG AI

~ 1lW tr~ Jllt.1fur !\. tii> i:ll'i11~1!! i!il :rw tm:i 'ltp! ~~!: ftii:!JR '<!i!'ir!! tiii<:J ~~s-~! {t I

(il!i'llfa<f, 90- I 0 f:;;<1:; fl'( 3!rr:nful' ~ i

~ iml t:R. 31lto.f<d ~ . fu; tnq,-_,1'1! 'nt:\:'f a\\ ~ m i£1 "{* ;,t;..t ~ ,

*"' . "' ,. ,;., - ' ~ ~":\'"' ~ ~ ~ m~-s ;a ~ .. ?·

( a > ir>ll<l l, 2 ~~ :.>

€hi ili1.:rr! 1. ~ 3t1' 4

(Cl ·~ 2, ~~ J~{ 4

•.-1 ;, ' '> '' .. ~ .• I '- ; . - · v ,>!t >o; '

!j()l:\5 ''IJ!R <tmfla ii "'; <ra !. 11: 31lO ~f.~j~ ~1r~~·{i q~r -~~({ ~ . ~~SJ:'firir

~l!<l •ffi:r.\l'J\1 3~~ ~ffii> [!() l'il 'l.IJ\'tl $ 6\tl I! til?~ ~~' Ji<Hm ill f~ :n~irrr f;l-;t;J :;nm

i!: 3m> ;;rr;fi\ <m <PJ.;;! r.. nr'i'"'T d:tt ": {'; m '~~''J ~o Ji~<Oi ~i> fFm ~1~ f~)tti :;trrn ~ 1

~ d 1 tikH~ ~~'f. ~';n ·~s: ~~tt ~ . f:Wran 'k""' '!l:o~:it.r;; :;,'\7. '[']tl ;:r, •i'r<l o·n :~<'m.'JJ ·:r, fRe '3mir~ tit."l:l'J :mm t. 1

~ ~ 4hd ~:;if; ~ l'MI' fi:'l ir. ->

T<iJ' J«lf~ ;v; :;fu;!>! liR. llfffiilrr.r. am ~ I

!I'~ ~ iE 3l'f-lirR lt 3i!r jj 'l'RA P fq;J

~ ·:ro:r· 3R!f."Vlf.~ 'fiE <t'1~!Ul <!X. ~f<l~ -em

f. ' f.ruftr<; Jii'Hli'! '"' TRAP !4 ·< ,\;, .mr a~m1 ;,r;; •rtc.:r.>; <H. Tiilf\r.m ~'" i,! 1

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ill. C~Jn~)det' tht; ff)lJ(Jv.•i n~ i n~l.nH:f.JI.ma ~

PUS! I I~S\\'

:J XTiiJ.

4 . RST u

85. Cm1sid<Jr tJ·w following .

Tlt~! SfJt~f!'-1 imbab\ttL';(1 bN.ween rnmuory accctu~ iHHi CPU opcrntjun {:fHI h(, rathr.~L'!'d h_v

fly which of thot<•1 IM!ntcliun$ will poimur oo uifectad ?

I tim SblL-k I

Ul, und ~

(n; ur.d ~

id 2 nml :l

i {j; ., ., anci ·I

\Vhirl• .:l th,~ l'nUt>.tw1rtg \nwtru~:tH''Hl:l n~quir~ HJ(Jn' n\1tnbt~r rlf '1,.~At.ut.eto: '?

~ tl :.

MOV i\. ll MUV A, M U)AX B l:iAil ll

:.l A!g.,rll.hn·,•

By \vh)d; t.l( lhe-,.w:! nltht ta ):IJ'IllfrJHil tsu-r dt~fi lUi

fHHBtahly ft~\'(~ 1 J')rt.IJ.!Cf'fUll tT~l fl R, p tcJ fmrfy n.n(.i (':' a.~n .)' '!

ta:· l and 2

R<l . Th" bnlli•ll< gJlh·nuonu>L~>r i~ u•unlly lightly dam~ $n that

• .g·, ' ' mny OReilhH.<•.

N-DTO·K ·GN() ( 24

Which o( thE' ;lbovn ata l.emen~ i.Vn rc C".OIT~l. "!

~ t}j I {snly

{).)? I aol.i :.!

l<:i 2 r1nd :1

{{)j :l <>!\! y • S6. in ?'I rnkr't)}:W<~,!~;:;~r.Jr, •ntetTuptinff by the l?O

devkt~ ~$ dlf.•d:co.~ nt. tht; tmd uf t•vcry

Vv'lHm an app!jt·:,t.ion

mi(:t'oc.:untroJlt~r jt,

adv.'lnt.Uf{<'JS rwer it

In i f:n·IJ.'H'fl1,~.(: !HJf.i r

t~ d(H:<i~-ned ugin).1' n

h(1S t.hu foll•Wtin~

dt~~ign i)l.lt-iC!<f em !l

ll;;& chip t'OtHll is lex&.

h t~ tWwe C:r uh t<:l~ntnl.

Which ,,r thP.* ..,.., correct ?

til! I. ~ <tOd 3

t d; ~ :U'Itl ;~ 1;nly

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81. f!t""l~fl:~i1 :Jq~~ ~ fu<n< #!f:)m •

L PUSH PSW

2. CALL ADDH

:l XTHL

4. ltST n

~ ~ r, ~ W.-r1t> i:l<l ~ WToJi ~~'~'lf;;c; ~!T ?

l!< l l 31"' 2

~b) 1 ~a

ld 2 ;ffi-{ ~~

(;;H :l :m~ 4

82. f.l•"lffiltm •1 :f: a~ <~l ~111. 3liie!Tlfil'l :11m w,g;n •) T-J«J~ i'w1 ~ ?

(~U MOV i\. II

~hJ MOV A. !\i

(t: ~ l.,DAX B

ldi 1);\D D

83. f.i""lfi''~ l[~ ~'"' if,!~ • I 11«1;{ -.ifu'.l

:!. ~ rnfttzli

Sli. f.;rl.~ ~ lir.lR' am~ . ~ :llfillm 3l'R CPU ~<m!'! ;'!; \fu! <m~ M~

l. ·~!IT ~ m m'<~ -ml! fllm1 :m <ll'f.<i! t l

2. ~ :Wr~ q<,w, ~ ~" ;r;•r fil;ar :111 m!l1ll ~ ;

3. ~i'i -a>! 3lll!TII tiC.! CP'~ ~ fl'!im :m ~ ~ I

Jtrqm <!lWlt 1'! * m -mtfl "~ M ?

ibi i ~2 vO (d •) :#.R ·~ ~ . '

id'l ~3

sr.. 'l;!e;l '<itnRa •1. ItO '«Til:R II; i;Rr :li"'<Rm'! <ttl qt,IW~. ~

'~ ; T ..:lm'llT 'l!; :J;~n 4 \W:cn :mm ~

1 b, m oo ar ;m; 1i fum 'Jm'!1 ~

w 31~ w; -as 3!<! 1~ !~r '3!lW ~

idl ~'II; lill' -ij f$7.11 :mm ~

~ 'il f0\'1 '<litFi'l r,r~T i!)lll~l'lm ::lfua ;,<;q tf l!'<i 87. 3tr'ffi::\1 'il111~ 'l(f~ -l!Fi <!R<Il ~ ?

;;m I'!'ID 3rjW.T'tli 1lir -q,a>lf~lfi ij';l ;w.i\11 ~ 3!l1rosi'l'G'l'l fffilll :mcrr ~ 1'l11 'll?,' ~ (!t1 '<i'ffifw ~ 31ltllf<a ~T <€! WR' II r.,..,~ ffi'll 'T,{l!ffi {Hj l 3fin

i.o·~ in<;~ I • tcj '1 -~ ~~

~' •.

idi l :>it<:J

84. ~~~~ ·Jt('ij;IJ•'ik.~ wl«: ::!f('q .l1~<i~ 11ntl1 3l1ffi t. ?flf:t;

t h., ·o-,..: fuH 'i:t "!Wi ;

c c , 11'4'1 i!:lsul lf>T :mmr. ~ ~ l d 1 !ll'fll imo1 Q;T 3(mll! ~ 'til

N·OTO·K-GliiG I 25 - A l

L ~ ftJil rrnr-rr 'i!l"' ;\! 1

::!. ~~ 3lillll~ ;>Aftrn; a'rf!·ll~ ~ !

a. mr ~1 <l<ru -~ i

~ -.{! <!~'tor ~ 'ffi§l t¥ ?

Uti 1. 2 ~{, 3

(b) !t.<r.-1 1 afR: 2

(C} ma-c~ I 3\1< a

ld'l ~23ft'<: ;l

······························-········---------------- ---------.....!

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l n a rn uithnetet· dn::ui r., rllr· lu:. voltage mtH~~u.rmuent., wh.al is the functi(m uf dlode D'i.t '!

\~\; To provide hnlf:·wuv<~ rf~,·tjfj(~ation.

Tu hy-pn.s rt>ve~ lt>llkilgt• cm·,...,nt (tf U1 d ur1ng tht:- n<~v.ative h~d f' {~yc;l(~ of t.he ~npuL

. J· 'I' k I t · - J') ' " II f() fJ ma i' 1. JC C .. IOtli!' . l fJl~f'IN1ll rU •Wfi\!i~

!'f~(!titkilllnn.

89. 'l'hoo X- input of rt CRO iA rm Pr•lierl with a Ill}.

signal lO ~"'-' I OOt. ;uui t],., y, inpul, <1 signa l

Hl siu 1001.. '!lot: g:.i us uf bvllt X ·clmnnll(l Hnd Y ·•:-hanru]'i urc-! t.i'w s~Hnt~. 'l'he .S<~~~n

ShtlWS

( c: ~ Cha!lgt~ tn t~h}._viu~u· (,f drt~uit t~lmnt'fn~ du~ tn thang~! (}f t~mJ)(~rnt.un~

IHHQ-K-GNQ

Which on" of t-hu fhllowing is the mnin reK~an fi>r llaing l wo ~train gauges in thtl adjacent arms <>i' a Whc9t>Jtrmc bridge circu1!. .,

~ H :• f.:Htnlnatlon lntt.~f'f(\f'On(:f.~

frequency

Oo; Tu facilital.e 'tuidc bttl~ndng of bridge

lt~·, Tn t~Hminatt~ t.ht\ effect llf (mvlronmental te.mpcrtttun~

T'ht~ 1raugc factor G 1Jf tho nt.rnin gaug'~ and tht~ P~)i:umn'a rutit.• ~~ of tht~ lnl'h~riaJ of the~~~n1gc~ ~lfH n~lttt.l~d n H

~· t't' (" ·' ::! • ~· d·)j G .. 21•

k} ( ' ·' ::: + 2·Ft

!($; c ' ;.-: I<

A Hull t.!ll'.,tt pick-up con h<> no<>d for tJw nu~~l8LU't~mr:nt r.1f

f ii) ('~TTl p(tn~htrc chang~~

( h ~ PH~SSUi(~

1 ~: f mng-nE~tic: n U.X

<d! r'ulrtt.iv(~ humidlt:•'

What iR rJw Ctlrl'm:l ~eqw:mw of blocks A, H. c :HHi D i 1\ t.Jw blot:k dingr:m1 nf a dnta ::u:·qms·ltion gystt~m ?

fa·: A./U r.~nnvt.~rt~H'. Sjgmd ~t>nV~f'U~r. M ult,i ~li(!Jct,.·, nnd IJigil.t\l rr«:torrl•,.

\ h! Si!,'1Utl <:unvt:!l'ter, M ultiplr.o~<>r. Dtgitnl :·et~orrlt:~r. nod A/r.l c.~onvm-t.er

t<:; Htgiud n~<:onh:•.r, Signal (:1Jrt\o'er1..t!r,

Mu.!t.ip!.,l<o:>l', IJ.flcl All) r.<mvm·t~l'

Ht:: SSgnni (~lJ)lVf.'!Ji.:~r. J)\gital ret•lrdtH·, MuH.ipt .. ~xnr, and A/[) ':nnv~rl(·H·

_______________________________ _,, ................................ . www.examrace.com

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a.e. ~ llltM 1); I'R<. ~ Q~<m i!. ~ 0 2 lJ5I ll<:il llw.lf t ?

ib! Jffi'f-<l~lf{ ltrr;?;iiOO all ~ <m=n I

tel f.ra~r ill ·~rl6 :t~-d m» lli ~- 0 1 ~ ;mpll Cf<Ui L'Ri <1ft ·;r:rr.rpf t-:lr I

111. ~~ ~ qf{lro 11:; 3JT~ 1!3!1 i\ m m~ ~ a; -;ttmr! mr f.1•~lflfun i\ i\ -ail::r m l.f<r.

';\<lll 1fi1<UT ?. ?

! a i ~~ 31!1ifir ... fi\w~ ir.l ~'if.l 1 u, Thi as '#<frr-' «il t11m m :'i lf<r~ ux-r. !C) ijkfld'(ll! ON ij) Wllfcl <Iii if.l ~

! d) JWa< '\j!l!~..,, lil'<l ;r.v;;

02. fa~ l!SilQ\ a;r ~ 'J1ll<V G 3lll ll'll'll it> ~ ili1

<mm 3l"Jtnn 11 ~ n<?, war.mt ~ ?

!?i!) CRO 1il X -~<n <1< m 10 co~ tOOt 3lR 93.

Y-Ravl <R <ia>"tl I 0 •i n lOOt ~rera fllrn1 JWlT ~ I

X-!l"m'' 3ffi Y-\iUTrM ·::M 1'1fltlti'i 'Rtll"! ~ I <rd\ <1m

mill~ ?

if•• 1:~T.s fila;-Jrll. fu;~·.m m•r:t <r."" m r..w J<r~:irtr fiFim :ill mnm ~ ?

( ~d ntQ 31"1R

l~i ;ur• :ffi1m

ibi <HR 'ml

<.cJ al , .\Tof!

fdi i1tf •

i r.J mq 3r;;~ ill 'l'iRV! •lftrra lmSt II; 3lltl<'>t Xi m01n

(<:/ ~l!iflf>m 3!11raw fdJ ~ 3T!i<!l

I ' ! -.;·.m; 'i .1'";'1 ·- .. ,~I"<~"! .. ;'! qmnfui t-"(~r~fta;j ~t~r-1..£~--l.~

<.u 3r;;\:t ;t, il1 <~ 31ms Ti ~ A, H. (; Jl\'< 0 all'

~~lf<ll~? .

(a 1 A'D t!RaJa>. liffia r.:ftm. If~ :Jih 3i<f.nl 3l~dib

rbi m;o llfurcta;_ d§<ithilii, :Jii&o 3!\''lffi.if<ll ~~ i\/1) qft-d'<fa;

i c ; ~ Jf.!l<'lu a>. ,i;,,., :rt'<"llklfl. ~rn1 Jih Atnwtr.m;

! d I ~ Cl~.ffi<l'J. :;ial')rt :n'~,m;. "li. <iiMd; ~ Am qft:rrJm

N-DTO-K·GNG I 27 · A l

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FrelJUt.mcy :.:~f;mponi.!J\t~ nf th~ irlput ~i~nnt «l lL~HSt upto ~hird hnnnonic

Whjch or t.ho obovc mearmrmncnL"i ctUI be UIJ1cit..• with &..he h~IJI Of n froqu~ncy rounter "!

(n.} L 3 und 4

rb: l <~nd 2 only

06. Cun• itle1· th•' fbllowiug N i.u ll'Cl1\lllt~ ! 11 l'eA JK'~l o( a \\ttt!l'l lwitljft' ·

l . lt j !~ ~"itnble fi)r n, t~t1~urcmumt. of (:!lp:l t:i t.nnC'I'! .

2. I!. i$ ~uita l:tl" r,r ll l(~SISUJ'<~Yfl(Ynt ,,,. i adut:U\OC(~.

:·!. It i; " LLillihll) lor IJ)(:aK\Ir!!UI\lf1 l l>f fr£'rtut\:n<w.

Whith (Jf tho Hi;nvu l;ttt1.(<tl\1Ul t l; is/n.re ·~nrt(!t:r. '!

f 0 ~ I onl.v

E. h ~ .I und :1

tc: 2 :\nd a • id) ~{only

97 . A ,-oiLmew r rem!$ 110-71; ,-olu.. The error

tokr.n frotn t.ho error cun·• id - 0·2.5 ''<s!L Wh8~ 19 U1e true vulu~ nf voht\g" ?

t u:: 11()-50 \1

\b) tl 0 ·2(l v

lc:) 110 ·70 v (d l I I H.I\'

N-OTO·K·GNG r ?. 8

F'flr the bridgo ~hnwn i'.1 ~ 200 U L 20",

Z2 o !50 Q .C 30", and 7':1 -~ 300 n L- 30". Wh:>l i.~ the '.'nlu e of l~ so th;<> t the bridge

is bll.ianc"d ?

tdJ H)() tJ /.. - /i()'

ln a lran~lhrnwr, fnr whidl of Lh< fi)llc>wing pondiUonii wiU Uw e:~Ccitins~ '~orrunt h(, in l)h.O$£' qutu:lrn:.urt.' wi t,h the i rn {H"()!48ed

wJJ t.Ag'E! 'l

l:l! Only !.hE' l<~~~kllw, imf>NI<Incu ch·op is l~flll:lrt~d.

:·<::: Bt'.>th h:~~kSlg~ impmbn(.i~ tlOd ,-;ott~ l 1:11t.19

tu··t:~ ignored.

q { j Dn ly the nc,.lruu:f l~OPJ'RW ln~.tt r~ ignorC!-d.

1110, r:ach of the thre<J insu!oio,.. forming fl RUing

haE ' ..etf-<!ap~tcit.am:e h( C fnnuk 'Inc ~hunting ettpadlilnt:t' of Ulc ~nnec!.in~ tn&Lal

work of each insulawr is O·l! C 10 cart.h nnd

U l C to lht>: ti0-4.':, \\'hut i~ Lht.: Jllring P.fficit:nr.y of the :trrtmg~m~nt '?

i h } ~ ) -2~,

; bl $()·2'*·

{ c'j ~9· 21*:

( cf; ~H ·2~*

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" ..................................... ------ ----------------------- - - ------.

96. P-1~-tflllfuil IR ~ ~e : M.

l. ~ lilt!! <fl! WI 3lTV,ftl'

2. a;>J·'#-cr;>; i'll~ <Rtt't l'!l5 ~ ~ ;1; .3fll<lil"

?j ..m a; ~ '!!ttn oi:rna 3. "''""'

.j. ~ f1r«<R

~ ll t ~ "'ll<1 3lr~ l1'J1<ll ~ <I~ "N fa;m :;n <lilXIf l\ ?

ia i 1. a :lll< ·1

tb ) a,'"CM 1 3iR 2

I c) Wcrn 2 3->'1-< :l

! d ) 2.3 ~ 4

1. 'QE: wftnJ 'lfTf'l a; film Jqq-m ~ )

2. ~If: ~-ti!i!'d t1 1~i; )ly ~l! :JQ~'t'fj ~ :

3 . ·a~ 311<fo! l'f'fTR lt; ~I? JtTqlti t. 1

~ ~ I! "it m mR' ~rfr M ?

~ u) ~ 1

lb l I Jb. 3 0 2Jll'O (cj • !d) lJ;im 3

a'!Rill~ (5J ~ 110·7:'i !lrR: ~ 1 ~ft' Cfili t. l'U 1lf 3ft -0·25 oil~ ~ I ~ lJ;l C:!tiifil<li 'lR <1m

ln) 1 \0·50 v ib l 110·:!5 v

{c} 110·75 v !d l 11 .1-f) v

N·DTQ-K-GNG l 29 -· A )

L---- -("-'}--- ..3

z, ~ 200 Q /.. 20·.

7':! ~ 150 n L w· 31!< z.J Q :loo o L - :ro•. ~ ~ ~ Pcm z.1 Q;l •1r-r ~ t ?

~a l 2?.5 ' l L. ~w·

tbJ 225 (l L. - 2(}" • (cj l!:XHU SO'

ldJ lO() (l .( ... 80'

Gfhufti:l it, p, .. ,rM&a -n ~ >JJl·:; -.\1 ~" w fAt! ~ uro ~ ll'l~! lli <11'21 1.1>i-ll <~rrd'l'!r.rlll ti' '(ill\\?

(a I a>:1C'I I!Rt1f llfrru!UT <iT{! if.! JtrUil ~;\') t. I

!bJ ~ <m W-r <ili ~en M ~ 1

«i iff~ ~fcro;w " i>lrs trif.! <ir.:O <R :F-l~m ~ (! I

(dJ ~ ~ ~ <mi r,If~ '!#. ~lilt M ~ I

m-.. fu~~- ~ ~ ;ffl <m.'lfult c ~ t.. ~ oft lRJ1l'r f I ~ ~ $ <fliT.;\\ Ulil ~ llll ~ mful! ~as:f $ lffl! 0·2 c ~ fflT-1 as lffl! (}-1 c ~ 1 !iRm! <tit ~ ~ '1R!l

U1i 8J·~

(b) SG~2%

(<:I 89·2%

\<0 91·2-l~

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r------------------------------------------------....... ..

101. M»t<:h List I with Ligt l111nd ~oll~<:l. th,, (:<.>rwct lOll. ctr1swer u~ing l.he- C'l'Jd n give:HI b~tow tlu.! H~t.tt

Thr.• ('f.tpHcitanc:E! of !t ~;J·t(lrt:· enblo bf.~twt~:ll?ln nny l,wh ('•mdu<:t.nrs wSth ~hc~.a~.h (~antH~~l i ~ C ~F.

\\1}u::t is Lht.:. ru.:•r fJh~) !:H~ l:.o.~pr~d ttHh't\ •ll' l h~t

~nh)i~ ? Lr.•tl /,w II

t'rr~m~for"'t'!r cc,nn.t•ttion}

B. D~lta -star

Cod~ :

f.t\ppl Lcaium)

~''1.'" C11rret1l,

Low volurgt

roting

Low t.'ufriJnL,

high volt ug e

rnl•r•.;

l>lo~'ping up "f vt>IUlg (l'

Ku: ppi"lt down \'d ' \'\)ltJlJ,ti~

102, C{)fH>IdlH' th v foJ!IJwi ng SI.~Ht~£1\C:-nt.~ :

!Il l c ., _,

ih; 2C ;!

\cj 2C

(d! c 1

1\H. If l\ i~ l hr> loss llllglc of th(! r.abl". lh"" wimf. ik {)'w J>C~WE~l' fa<:ti.H' ur Hw (:Ci blt.• ·.)

:b; :;\n (.)

~ l:? tun 5

105 . Tht'J ptH'C~HJt bin~ fiir generHt.or JH'(Itt'H~ I.i t~!l ia ab<)ut

~ro ;, ~-0 10

(\)"; !0 to 15

~ ( i j;) w 20 :d ~ !\} f;() 2!)

Tht~ V AR iojoct.Yon in u pnwl~r ~)'fi l.t~nl

obtai nr.•d by

,;; j (16, ·~ <r-:--------··------,

T, ~ ~ 1)~

:l Cnpl>crt..r and inrlu<1.or bank>.

4 Inductor banl<)i.

Whoch of !.he nbovfl ~tul•:mcuts nr,, corre~l ?

!a; l. 3 nnd 4

ft-: ) ~~ •'l fl d ~J .t:mi.'J

i d t ;.! , ;~ runi ·1

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! ol ¥'1'~ i

Tht> Jig u ro ~huws ~ chopper cirt.uil. Whut i8

lh~ 1.\'fl" of t hl.' c.happcr ?

: a r 'tyr,.(; :\- choppt:'r

:· h :: TypE~ B-d H:;pJH:r

:·.:; Typt~ C-dwpp<·~·

Ul; TyJ:.t:- D-dwppH

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101. ~-ar , aiT ~ 11 " ~ ~ 3iR: ·wmn m ~ ~ lW, ~ <fir sr~m ~ <~ 3<R W'-w ,

~J1J {rtf) 1/ t<@vuffl'.'4 ~J r:;pmP11

B. ~-om

c. am-atu

D. ~l~FtR;T

E.' A B G 1)

iaJ 4 2 :.1 1

lhl 2 :;

k) 4 3

\d! l :l

1 os. iJ·ln'l'5 tmrcr <tlT utfult ~ <:T ~ ;); <tlu ~ 'lj,tl'lfaid a; ~ C :>F (! I ~ tift l1fi:r <Dffi tl1ftot :RlT i\ ?

~1\) c ....• 3

tbi 2C 3

! t) 2C

ldi c 2

1 o.j. tiR s ~ ij'ii ~ m ~. ffif ~<t 1lll rnn :l""" <mt~?

{ li; cos 1\ • ib} sln ~

r c 1 ta.n 1\ idl &~~

i.a> 5<'110~ (bi lO ¥1 15 ·~ \c) 15 ~ 20 t (d) 10 -~ 20 ~

L tq 'lfur..Ri q~Utlfi\ ;/! i}l ~lllr«l fusm :mm ~ I I . tn., ~4· 2. ~mriffdl ~~ lrm IW<'! f!r.m 'Jlrnt ~ 1

3. 'fltllfui 3i'R Vr.5 f!~ 1>m 11118 fcsm ~~ t 1

4. ~ fl~t?i \lffi ~ fimn 31'li'll i! I

~ <f>ll'l'i li ll a;t-1 ~ 1mFI ~ t ?

( (J ; I, 3 311< ·I

(b i )''~· ·· . ... • v

~c) ~ 2:;1\q

{d ) 2. 3 311~ .j

- 0>--_J._ _ _ ____ ..Jj T~ ~ ~ ~ 1£1! frnlffi t I ~ ail lliiiR ;rnt ~ ?

Ia} lll5R A-~rl!

(b) lf<llf{ B-~

ld mm c.w::li (ff j !!l!5R 1)-~

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r !07.

The t.hennal Ytt~ist~nc"" for t.he thyrisoor-Ni.nk cnrnbination are (H6 u.nrl 0·0!) c!w. lf the junctiotl Lemp,rnt~u'C ia 126 •c tmd thn hen t sink temp<!rntur" i~ 7E• "G, whal is lhe average power dissipnt.ion ;,, tho thyri.~tor-~ink tXm1blnntiun '!

iai 1!>0 W

!b\ l7S W

lei zoo w !di 2.25 w

1'o~ l.rigg,1ring dn:uit of " thyriKtor ill Rh>~Wn. 'fhe thyri5tAll' tc>luire~ 11 I'(At" wrrent E>f 10 mA, l(>r gunran teuoJ tmtl ·nn. What. iK t.h!! vnhu; 11f R

rNJuircd liJI' Lh~ thyriHt.r.>r t" tttrn 011 reliably

under ail ' 'Ollll ir.{On$ nr VIUiftl,i(IO Of Vb ?

L1J 100!)0 ohrn~

>:!.>) 1600 ohm~

1d 12011 •>nm~

(d ~ i1{}{) ohms

109. A r;uO\'l~rte:.·u· htHf ht\$0 dt~Sig'l'lbd t.o t'tpt1r~W em E'i

220 V, (;() Ht Knur"~· If tho ' 'Oltage falls,

frequency nnd '"''d currunt. ,.,maining the fUUne. t.ht~rfl itl a pn~i.bilily for

<b) e<>mmur.a~inn railul'(l in Lho redifier T<'gion only of the cunvr;r tur.

(t:J rom muta,,inn failm·o in t.he irWl!A"ting rnglon unly e,lf t,hf! c;onw.rtf:r.

!d) commuUILitm fAiluro in IJ"ncml in !h(·

range or :irinfl Rngloa C) s r.t ~ l.Bil0.

no. !n 11 H-phaat• crmirollcd hl'idge t~cLilil'.r, with

an ;n""as<! <Jf overlap !<ngle, how dt>e~ t.tlo ottt:put d.<:. volt.;.lge ch"ng~ '.1

!1>) IT>creas!lS

lei 1)(1<>.,; nnl cha n&"'

!d ) Depends upon b ftd indu.,tarux;

Pig. Itt}

'I.')' .. The F'ig. {nj Bht,ws nn invett~l' <~ireuil with tt

d.(~. ~()UTt~() vbH.~&O vfli. The L'c:rnit."nnd,tr(.f.(il'

K\\'~tchl~s: an~ opc<!rrtted in l.foch a nutnnl~r thtlt th~?- pole ~olt.a.gC" .... " V !n and V !'ta .'in~ ;;hnwn in

l0 ig. lbi. Whllt is the rms vnlue <>f Lhe voh,1g6

~a.) vs n

!b} v s fO {i1t ,..

ft:J vs ;0 ,--· 'in

!d} vs . ·~ ·~"j'f'[

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10'7. 'l!t~R:..cdua; ~ ~ f1!rl! '1l1ll'm llfi'l{lti<V 0· 16 110. '1-<IX'IT ~ ~ fh::<:sl<\'1 i\. :J,fu&11<H m qR :lit< 0·09 c/w 't I ~ ti!b Mltl 125 •c 1! 3IR Wl1 'R' f.ci<l' d.c. ~ i'i '11<!! tlful*l t$1 ~ ?

fum ruq 75 'G t tr$ftM-~a> ·~.%1 ij ~

~ ~m ifZli t. ?

( ~ } !50 w

lb l 175 w

(e) 200 W

!dl 225 w

Vb = i l2.t·li\'

.......... {~1

/ £( y_·· _j· .. _ .; ____./ -'J\Iv..-v .• L

i'.11$R'R:{ <r.r <IIIQ<JI\"1 ~'!l firumt 'l!m t 1 ~ :filM<! <'!> lc:w. m~f~w..< ail I() n1A 1.\'R' tlHT <5I 31!ijt<l<llill M ~ I \1" tl5 ~ lis\ ~ <:m3ll 'R

~l$fHc< ttl fd1<Ht::\)1M! '3!'1fmt ~ ill fuu R 'lN

Jt!<t~aa. qr..r iffiT ~ ?

(a) lOOW m: rbj HIOO 3fr!!l

l t'J 120<) ~

(d ) BOO Jlno

109. q~ai\cn ai 220 v. !Hl l l1. ;\; dll'f 4'< srurn'f ax:'! a> !ffl! ~ fi!;qr lKl! ~ 1 ~ ~~I'll lr.«t ~ 311< ~ iWI ~~ I!T<1 a& ~ ~. (Iii ~ ~ -n~n t? Ia) 'J'il"i! f'-ltllA

rbl <lfia,ht> $ loon ~temrtl m n <it1R ~

1 d at~ai'lr.f; a; ~n l!fclrq:1 l\i!l ll .ti:ll'< fil~~>run

td) !il•ll·<m: ~" Sl'roii o ~ " ~ uw· ·11; ll1'1:~'< ii ~ fii<6"M1t'r

N-DTO-K-GNG I 33 " A I

i" ) <15'1'1 f,\';¥1 t • b • a;; ;;n!i!l i!

ld ~ ~ ~ f.;nT ~

i dl 'I:Jt( ifu ~ IR f?t\."{ ~ t!

fiP.! (a.l d.c.. ~ <*fCi'!l V s ~ -.r.'l! t!<1> llifu.~ qf{®

~ t 1 31t.lmti"m ~m il?T ~ ~ " If(~~~ fa;m ;;mu t fij; Wi a"tR;m , .. Hl 311< v :1(1 fiB (hi -q ~ 111! ~ t ! ll'ln:n1 V 12 ~ rm& lll'! iffiT

tal ~ 'I

!hi Ys , f9 1, __

~ (~) V;; , fi '"

«l j vs -~ -·;.v~!r

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112. An intiudiun nmt(}t' <:ldv~~ ls used f()r a spoed -~.·mn.t·t>l t1ppJkat.ion. Jt )s drlvt~n from ao !rwo!rllu wtt.h t'l')ntltA7'Jt V/f control. ' f1-w nun,~

pirttC: da:•t.1l;IJ~ SS.Yl' : V "' -\]5 V, plu.1~0 : 3. f ~ SO H·r.. N • 2850 rpm. Th<• motor ;,. r:.m

with ull~ inverter l)lttput. frnquoncy set ~t 40 Hz, nnd with half thl! rotc<! sli(l. Whal i.• Lhe running "puecJ of ~he n u1tm· 1 tStatldtmf • p;:<>d <tf lh<~ mot<>r Is 3000 rpm i i ;t j :!790 rpm

ih i 2 '1(){) rpm

;c; :! 34 (I ,,.,

\d o 221:10 •·pm

/)i~t-timu : ltm."ll t.•( l lt f.' tVl.r'l p£gill {S} items

r~on.,L:.;t of tnm st(~t~mtrnu.·. ,,,,~~.. lnbelled <1$ lht• 'A .. <-l.~t'l'ii.on (1\Y ond tht: o~lu~r r:t.~ 'Llf!tJimn (fiJ:

fm. nn· fo t':Xtllnitn• t. lrP.R'' iWt) .').f.ati!Jntt.nttc

f.":.'fl¥j";dl,l· fJTU J tr~rfr:•d iJH! (UJSWt~f~ to tlw~ itfJN.s

u .. ,·i11g th~ m>~lt giv(•11 lwl•:•a.· :

115. As.<l!rlirm (.4) : A rnonoBtnblt! mnlth•ibr·n!~.~r

~fin b., used to all(!l' r.h., pnl"'' widt.h nf H repetit.i,·u pu iGt}

tr!1;n.

Rec:scm av : Monns~ublo lhll:t~vihrnl.trr hnH It

•ingle stable •t.ato.

J 16. As..,rii<•ll (A.i : When SSlJ jq u•m.l r.o lrn081nil

' 'o!cc or m\.rr~ic. oho.6o di stort~Dn

i.~ l)t){ o f 111Ajo r ((o11SC<jU6ri~R. .

Rr.IJI;ofl. fRJ : Human M r iA i n~tm•iliw: L<J

pha !tt~ dis txrrtion.

117. i\J:$~1'/mrc f;\ ) : PJ\M is pJ·t·ft•rr,.ti mt(lol' PCM in

digita.ll~cunmon;~.-:nt.ion lt.Y!'ltt~m~.

R~a.•o" /Ri: In I'CM qunn~:z11~iilll ·~rmr i• ir)W.

1~\; B1.1th l\. tmd H nrt~ in<iividunUy true Jtnd 1 18. A.~oo:$t~rtr:r:.n (t\.} tn~.(~i 80Sfi O'sirmpror:c:S~I)f' hil~ R i< !h~ t'<lrt't!d nxpltl nrtl.ir.lll tlf :\ fivo hardwm·e int..,rrupt~ nnrl

ilri Brrth A nnd 1'1 nro inr!ivi<lunlf.y tme hut ll <;ight •oftw"n' inlcHTllpt.!l.

i• ""' lhtl oorroet t.'XJ)hln111.ion <•f A N""·"'"' OIJ : All tJ>t, thirteen f>f thom '""

tl ~L A . ..;~>.•r·finn f:'\.1 : AU rt.•!·r,,('lfCl';rrh: fH#)lel·Ialtt ;n 119.

tlw f<~l' l'\>f!l~tric SlJifJ., t>XhihH.

, piO'l.VC'!l~ctric behaviour.

fl,,il..'iOtt i!V . l='~rru&.! l~~lric 1tlnlo is the 1

ordorud SUite ...r n <-uHection of

(•lr<C!J'ic dipole :narnunl>i.

r\~t><-t'lion ~:4.): A ttt~ri.a.f l/C) u; rnur.h ~:~:fnwcr

,.hun lHt rrt Htd t/0

R~M<Ill au : &rial 1.10 frllrll<nlit& •mly l>nl!

bil in unc do& f>enod while

parnl!e) liO tranamiL~ ull hi L• of

one word in <-ne dock p<>rind .

1 l<\ . J\$« rliM ;:\) : A <h>ml!lt.iplcxer CHnnot be IJS<.on !AJ : High resi&t.ance sl.nndnrds 11we ns t) dt$:$f'lor

l\'f!fJ.'irm ! }{; : A ctemult ifJ)(":<~r· Mhtct.s on~ f>f

N··LHO,·K ·GNG

tnOI'l}' vue put~ whure.a.t; o

dt~t:r.)dt:H' ~.c-h!da u n uutp·.H

C(JrrMfJ<mdin~ !.<> 1.he t.o)d~tl

lnt>\u.

sopara te putenunl nnd cornmL U11·minlti.J.

l?tY.uum tfl J ~ fiuving anpnrnr.c~ b!'rmirwl~

c.~naures act;urnt~J ment-~tll't~ ll1 t~nl uf .. •nh1lt-f#' rinlp

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112. mM ~ ~~ 111 i"ffl! l?tfi sr'tt'r rll~' mrr-1 1 '5. mw; w.. ~;fir.f; •ii:r• <1>"1 •rma<il ~tla.ai.'ll Jl1lim <1\'1 omft t I ·~ IJ"d\" f~tt.fll; V if fur:M ~ if; «i'~ fa·""' ail llf{afM m "11'; fFm ~ t, I ''TTII • Ott~ V" -t 15 V. alffi : ;3,

r " 50 lb. N " :!fli>l) rpm t!' I ~. lfii\qq, ill\ I 40 Hz <R F.rolf;rit f"rr\1'1 Jlr<l,i?l Jlr< fu~ ~ if; :Jm1 ~R 11~ ~ : me< lilt wtJ~ Cl11'l um ~ ?

t~ iCr tiP.<6 il1l'l :woo rprn ~ ~

ta i 2790 rpm

lbi 2400 rpm

lei 2340 rpm

id i 2280 rpm

~ f~ 311 ~1'<l>r!l ~ I

a;r;ur !lV : ~-a; ll§ill'l \T.iS\'1 ·mm'l m mffi ~ I

l I 6. fP<R IAJ : :;!!! SSB m1 iJl(j) m WRn l!i ~ m ~ ll'glV ""'~ ~ 1lif ~ ~1 l!'lfi

l1'JG ~ -:nil ~ i

L'fi(rtt (R; • m''f<l' a;ot :l>;;r ~ if; llf<t met t, l

f.lt#r : 3lfiiT'ft 3f"Rl' ( IJS! ~"7=7t~t rf tr fli"W; sf ;0 ffieFf 117 tf. ~ ~R i Ar m.7 ~ 111l ·~ iR.i' ;t;?fl •

'llrlr t I ~"I zr'fl ll'IPJ"'i OF. ?TmriT~/m rrftMtrT m< F llil"Mn <m :rrrr :mt &r! lit? w;r crfr <fZ<1 {]ffl ..t fjf.lr! •

~ isti crr..fi A 3i'R H ~11, ·~r~ tf·. :ll'R H. A a\1 <~) 118. rmi'r iA.i .· ~ 8085 'q,~l ~i'H!Rl' ij c1fu ~{

3.~ 3i\~ 3:i'l5 ~~IR .:lfrt<~":f ~ f. I

<bl t.=li A 3!':< H ~~ 'ff#l ~. 'I~ R, A 11\1 ~ (Qrit<!f(Oi 'f(fl' t,

1 ci A nm t fil>~1 n :lm?.T t. ldl A 31~ ~ ~ I{ <ti'!l ~

II a. i1l<R fA ! :

llfl<"U R i •

114. ilXR (AI ;

iN<f1r (R.I ;

·fl\?0 Rite. 111'g'! crc:rt ~ ·flnJ1! ~ ii ala' finm Jnm01 ih>ro!t ~ I

~-fitlm 3lml1 ~ ftqa ~ <Cl ~3llm!ll ~ I

~T<t.tm ~ fll<mga; <iii (Rl: ll'q<t>

~ fiiim lU ;!l!'Rll [t I

Q;qfli::«~d'fl'( *' f~ ii ~ l?tfi <Iii

<rtr..:r <!i<rn ~ :;ml!; faa~ &di ~ P-!tm ffi Wl1'! P-r>rn tm m.r-r <!f<<Tl ·~ i

cm<ll !RJ • ~ 'fi <ffil ~~ ~ 3fi'Rl't.l"1 ~ l

119. <'f'iZ!"; (A i : ~ lJO, :OT!f.ffi. VO $'! l.'!'fl'11 i\ m'TI€t m t. !

1"!5Wl1 {f1J • J!iu\1 l/0 t'ili 'ffi'iia; Jreftl ii -a;a?l 11$

~ Q!'ia ~ ~ ~ <I'I!RR 110

Qa; ~ 3l<lft :!i ~ VIi! (!; ~ fail

lfll ~ amr. ~ '

120. znu.:r (A j : JaJ u!'i'R\w>ii: '1Rm ~ Hrm! ~

nm .::~ <t<r!t ~ r

iN<UT ! R! • ~~ -e:f'r::rl'f <ilR:m q;11 ffi ~ lll1:!

011 '1f.1~rJC1 <mOT ~ i

N-DTO·K ·GNG ( 3'5 • A I

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SPACE FOR ROUGH WORK

N-!JTQ-K-GNG ( 36 ··· A l

------····················

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N-DTQ-K-GNG

SPACE FOR ROUGH WORK

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S'PACE FOR ROUGH WORK

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:w¥ ~ ~ rq fftttsrvr JIWtiPJ

ita\:~. : N-DTQ·K·GNG

aR<r-t ""' Of lP~f ;jt)E{ 'ffifl fftti ., ati'f

~~ 3R<ii!SI ~

~-"""""

tR\atUT ~Rdcbl ~ $~Ptqf\

~: 300

~Ill !IR"'1 ~ 8oi <jV\'1 ~ , 311\l ~ q'{taJOI ~ ~ ~ 31\Nt! <!R: ~ ~ ~ llirt fiAr IJqf. tSl':l

~ qp P' 'fi'5 31!1<1'! ~ ~ .., "' t -qj} ~ f. m ~ ~ ~a!UI ~ " -.m ~ 1

2. 'J\'R·q"B '4 ~ ~ IR q'{jiiJl>l ~ ~ A. B. C m 0 &<II~~ ~ ~ ~ ~ ~ I

~ rme1111 ~~ "' WI -r. !?.Q mJ ~ >t :ll"'"~ 3ltr.il I _j 1l'!ll•'lia> t(l;.m;rr ~ I rm~f111 ~<'Iiili ~~~ :Jik fM 'f ~~~ I -· --..

~ liTrWI ~!Ill tl 120 lrt"-ii" !~T-'!1\fu! 'W f. I \l'rQl~ UHi<! ~ 3'fr< ~ 1) 13'11 [t t ~ !llRi'./1 ij 'i'JR ~ (JO''Ci f'<iP. 7!l.' ~ I ~~ '{) ~ ~ olf 'Vf! i'l ~ Jll'l J'iH •TP.!'.\'1 <!'( :,ll~ ~ ~ ~ I ~ri?.

3!1C!i!l! (!tll ~ \a; t'<!i iJ .mlr.,; ~'- ~ '/': ;f, 311 !«'tlTH '$) 3ifffi<'t ~ ;>([ 3fltl1l\'l ~ prl) i ll<'!)a; .. ·' W'iiltl !I; W-tl? ~ l!iff tJ l<<qfl~ 'fRl ~ l ~ 3ltFf ~!l\'r ~ 3trr>T ~ ftl! ~ J{l'{·{ffil; ~ tJ ~ a'R"! ~ I ;r'tl\·lffi!l'ii fb.? '11! f.Wn ~ I

6. ~~ li!PlVI' ffi ;}ia; t~m'i ~ i

1. ~ <T#f 1m :llill IR\al"l 'll~1 a; IWlm ~ron i!!~r~m J<~<·tm; "'Jlft\;.1 l!'t'<-11 !IF ~. 3IJlmlt ~·a!lt \mill'HI'.I i:r; 'f!ru llfitn 3!'J?.~R m 31i"!' 1r1J 'a<f~u1 J<f(.qm;; £t ~ ·~ :

s. :m'l ~ ·mil q"f'd ID\ J'in· tl'!f<ll <I '1¢1 ~ mr. iTh1 t;fr;;n U; w.ll'r.; "' • :rrrr-~ J+trrllf1!l ali <i!tl t ! Jllll'lb'l JilT~ -~ rma.rn: 'l~ ~ ;;rr4 oil 311'*-1 ~ ,

9. a;r:a lf.'ltl ;t Frw q;ro; ITUI$1! ~ ~ ,;in '!i .; ...... i! !

I 0. 1'Jffi'l J1'R'I $' f'lllt! ~ '

~ ~-q>Jfi -q 3>4'taaH ii.RT ~ w. >ma :nffi ~ ~ em- ~n 'in1l!l!l 1

; i ; ~ U1F! ~ ~ 7.1H i!'!l>fi\trdi Jffi f I ;lu~ ljj<t ll~ Info'; a> fil«~ jzy mJ 1f<!i tlffil :m>: a, fffi! !!'A ~'1 f-ro<! fo£~? 7!1? 3ilr~ 'ii>J 1!!5'-~ (0·33) -.•.rg $ 'l'<ll tl ~ :lm!'1! I

! iii ~ ~ ~ar< t!m it 3lilR5 3m ~ ~. ci'l ~~ 'Will 'ltR 1!RI :m1?'11. ~ ~ ll1! :r.Rt ~ -fl e<5

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(iii; ~ a•41c.al< j;'Hl .m ~;1 0'! ::r~ ~a;m 3unr ~. ~ ~ •rm Jm "tt1 ~~ '3fR1 t m :rn 1m' il; fRt; ll5'tf ~ ~ fr.r.n ;)fftrljl 1 •

:mt ~ ;1l1f1lli} ~ rr&rvr ~ffflii ~ <tit "' lim 3fT/! 11<1 ffi1J ., • ~

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electrical engineering objective questions part 12

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