Objective Electrical Electronics Engineering Questions and Answers
Electrical Engineering Objective Questions Part 12
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Transcript of Electrical Engineering Objective Questions Part 12
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(,~·- •·., . ' :: Jt!.])
· ........ ..-·
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
•
......... ,_ .. __ , _________________________ .. www.examrace.com
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2.
:J.
In th~• <:ircu.it. ghown, whnt i• th" rummt in th;, l £.) rm:~int:m· ?
{H~
\b)
t r. ~ (d'l
tJ A 'J.A
9A
21 i\
!i/:i tl ..---.-------,---···T-''\fi.A/V-o A
I
~5il
L---~----~.--~l--~oH 2A
5.
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
7.
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
·---------------------------··-··································· www.examrace.com
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I.
3,
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
ofl
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
6.
6.
7.
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 ~ ?
IU }
ibt
((: J
(d}
(lll5
I" io
( (!' !bJ
id
!d)
w Hltf
;;) V' ·v ~ ''" •ta~
./3 Vv' , t.nf
:l w star
n : l :l!r~m () .,
I ~ 1 ·= .~ .. I l• _,,.
nJ
Z-~
Y·llrdl'l
AHCD-!m!R h-llftr('l
•
B
<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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8.
!l.
Hl.
ifH
(hj
{t:;
idt
-!
:l (J
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(•)
(<.\/
I.
liz 2;.
~- lh
s~: '!' :~s
2ls:t ~ ll
5:-: ~ l
~is
., 7
c;
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~ ?
A i
in·: Strnpl~r· flH.nrs ccut h~ UJ~t)d t(; dbt~tln tht.~ ,~rig1nni s1gnuJ
! h j Bandw\dt.h i rtere~~es
- ---------------------------------------···································· www.examrace.com
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a.
1l5l llR <mT # ' 1.11?-i <'! t + 1 l, l .- -1 IR t!<lXI5
3IWr i! far -1 {b)
!_,·) <I
fdi 0
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
lO.
II.
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
L ,,
s .. y. :~
2(;2.;.};
a.
•l.
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.
16.
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 '!
(bl
k}
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;
19.
20.
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)
16.
~ 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
1H
1 .. , G}t
1
((:'! ... 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
.20.
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
t ?
!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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22.
·························----- --------- -----........................................................ .
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 /
~ur.h
25.
! 2(;.
I i ;
<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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21.
23.
~ 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
t ?
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 < b .:ll\'{ j>.~ '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.
27.
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< I V >< 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
{b)
ki
.:d:i
1.
T:~
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~(~~
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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 ?
40.
,.!\:~ ?.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.
Nq
N··DTG·K GNG 12
i:::
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 .,
A'
(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
Nq
(cj t Nq
{d } N~
q
41.
-12.
4:1.
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'<i cr>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
~t .
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: .,. ,, ~ "" ..
<I "JOGi'l< <> >~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
46.
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
l.
2.
(.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
~mr
~ 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.
2.
3.
4.
5.
Ia)
(b)
{c )
ldl
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$Ci lh\lor.
56.
Whnl i~ t.lw l.ntnl tmmher t~f l"'ogr:mun:•blt' 1\tse~ iu 1m ll·lnput, Hi product tem>. ·I output I'I..A ·;
Ia ; 196
I b) 512
( '~ t !}
(ti l 192
r .. ....... ·---~ < .... _ .. :_--1;-:;L ... ...I
[) o-....... - .... ···: ~~ /(; ' ' . -............ -.
\.\1hich gnt.<· m UJf.L be )ns~~rt.~d itt the dnshnd bo.'("
t>f lht~ cin!ni t U1 \.'OBVi~rt n T~Oip· fl<>p it\l.u n
l).!Jip-fl<lp .,
1a1 EX-OH
I b) AI-<D
( (~ ' OH
fcj) NAND
57. Con$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.
2.
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. $; ~'\-<j • I
8-~r. 16-~ ~. 4 f.'nlrt f'LA -q if>lfll:ii\<J
~<&~~<I'm~?
!s i 196
l bl 512
(cJ 9
i d i 192
L-----~ • ·~--IT
Do--- -: ' • ~ ------·
,
1'->!!'l·l!!tl <t>'t D-~<f! -l!l\1 1'1 qf.t~ ll>-<-i ~ !ffi!. ~~ 'It; ~ m 1'1 ~ "' ~ .m 3r~ m:n • ?
! S.l I'X-Oft
(bl AND
icl OR
I, d ) NAND
3. H-C mctl ~WitF-1 e'liffit 1 197. R"'1~fum <mr-li 11< faar{ ffi)fr,~; :
4. 3f-J~li!'l ;).~ft! 1..-C illfffll I
~m ~r• <:)lm'i ~ -a llll'·l ~~ !'I\ 'II'&! ~tl ~ <Bt \ffit vgro fa';(! :;n ~ # ?
tal dhz !b.l iJI"cffl 2 • {t~) ma \ d> 3 :ffi 4
54. R"'1fftf{,j~ 31(1\\u IC od; ~ li "it ~ t!'itl m mu -i;mu~~# ?
i >H ITL lbl l~CL
( <:/ MOS
ldi CMOS
111-DTO-K·GNG 17 .. A I
l. !6-~ fct'(t'JIQ 4 ·~~~ 1'!\i' 16 1!111-uq'j fflt 31l<lt<l<fkll M t- I
2. 16-f<rc :#las: "ltt11fi . <llt " l!!tl·~ ao\'1
Jiln:r<lmrl! ;11;\i ~ 1
a. 16-~ 1'"" d'>ll<Yi rrum; ail 16 tltT-ertit lflt 1lltat41l\n! ~ t I
4. 16 ~ arm m>l<f> all Hl fltl· !7!il <& 3ild!i!libi11 tll<\'l t I
(b ) l, 2 :;m 4
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MI. lllntth J j~l I with Li•t ll smd S~llll<'l l.h~ t:orre.-::1.161. ;.H\;.:wftt' u~u\r: t h'~ ('(Jtii.: giv1.·n bolm .. · tlH,1 liet..-t !
IAJii J r.C\J'J~l it·o.J imr J
A. f.'-<,nt .-,)! hlr,it~ fiu l)
my thf1t is.: ~bid in tar~e '(Urtnl.iLicnc
H. Control logic ft>r
;. mirropr'X.-o.rit~ur that i• •till in t..ht:
<h~v~IO(Jn1t.•nl Stngr:
C. :-» ~or~ file:~ in :.:u\ c•m }wdtfot'l ~.vRli!tl\
f) . Con tr't~ i ir.1u-k f(.~r <': J>C'O)j{:C,~ t h 'l h.c;. t :t.•rl\tHHltr'h I ( \ (J
::Ct:!~:.;.lr;n~\i 1,\'
Cod., : ·---
Ust /1 alnr.p/(mt:n.tofi.on
l'lat{nrm. t
P.PROM
2. l'tiOM
if fJ r! dt~Vitltion rntio. l~ ... ~>undw)dt··h, w· .. ~ bandv.;"idt.h of m(:SSa$.:'<~ 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$r noise
:.; Siopt O\·,~··load
Whi<h .-.r th.>.-.c oro 1ho drowhucko of r.l(J(Jr:.!;'Jt)fl(l ?
€:1; I ttn(J 2
fh; 2 it11t1 ., "
1 c.l I ilt\d :l ; ~I ; 1. 1 Hnd :l
i 164.
! deltn j
i
' ~ l E
H~81tl ta n<'t.'
2 .
·~. Hanliwirh.h u\·•Jr whkh it i~ m;:u .. •h•n~d
The noi$~~ 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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615.
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
{a' 2
(hi :l
{ei ;~
td:• :l
c
l. F.PROM
2. f>ROM
:l. ROM
0
:I
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
(c i
Hl i
1.
2. n
·' ·
!a I
lbi
it:)
id 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
~d iO
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
66.
<: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 .,
68.
iti :. lhc Mhcmt! \Yherc :fa.tne ~;an1cr rrcqth"OC)" Ul USt"tl for l WO diffcn.'JH ;;igt\tlls
If X un<i Y nrol LWO iruier•tndenL Gau,;sia n random varinbli.'!'~ NICh \\tf\l1 avt!Tfi..I::O "'alue z.cro a nd Vflf"iAnn! rfl. thc;r JOin' probnbiiH~· i3. density !imctilln is d•~fincd a>
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~?
G7.
68.
(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
4.
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
71.
72.
7:1.
w fuf~m -~ 11< ~~< ~ ~ ~rfllil>i'ile
l ~p~= ... ,
2
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$1 bm a ""l oi rool'"fvetl
76. Cnn:ildc.>r l.i'u: Jbllnwing ti:rnlli- whkh ttr~) used to 1ndhatt!- !ht: timtt l» k€ro whn~~ t~~~u:'lltlnR I
!.
I \.Vhm i~ tht: eUt'l"~\<:1. StHIIJ(tOl''t'• ~\{ ChNH· in thr' . <lf.l.'l~nding nrdt1r uf tlu: t.inu: t.nk(1l~ 1:;~ · ·~nd .. :· '?·~
I l
71!.
• !so .
77. I
The rmnuu um n umber nr lW() inJHll NA_~tn J gnt'>l' needed w p;:rform th() function of A tw''l: inp ni <' R gnu, i~
ini one j
!it ; h ! t \;.•c;
i r:! I ! '
N·DTO·K ·G">iG I 22 A
CllfHider the fnHnwing Stlth~mtH\tS :
Tht~ idesJ of (~Hchn tTH'!mory it' hus1..~d em t)u~
(. prc>pert.y of lo('ality (,r r~(¢'J'COt't! .
2. r~kt. lhat (miy f>J'ogrnm i;; frcqu~nUy.
:~ srua1l portirm t>( n n~f(':n:nc('d ruliJtivuly
3. ~~uristic !KJ..lO ruiv.
,1_ !bet lhst. refetenn--s gC'n~roiJ .v tend lJJ
du~tcr.
Whith uf the abo,•e ot.at.cml!nl3 are cur11..:l ?
(a ; I. "1. and 3 only
oh; I. 3 ~ nr.l 4 rm!y
;d ~~. a and ·~ unly
Tht: f);Ha huti ;n tHl R-085 tllil:rOJH'I';ltOS&or i,~ l~ g1'!H.Jp nf
! a ~ night bldin:~<:t.t(lnaJ Hn~$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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71.
75.
7&.
"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 ~ ~
lbi
lii
!J
5
·1
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 ,~
•••
1:
' (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 • ~ ?
1/H.
N·OTO·K·GNG AI
3.
4.
~ 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 :.
(b)
:'c)
1d:
I.
2
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~ $n that
• .g·, ' ' mny OReilhH.<•.
N-DTO·K ·GN() ( 24
I I
Which o( thE' ;lbovn ata l.emen~ i.Vn rc C".OIT~l. "!
~ t}j I {snly
{).)? I aol.i :.!
l<:i 2 r1nd :1
{{)j :l <>!\! y • S6. in ?'I rnkr't)}:W<~,!~;:;~r.Jr, •ntetTuptinff by the l?O
devkt~ ~$ dlf.•d:co.~ nt. tht; tmd uf t•vcry
87.
A
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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88.
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.
91.
92.
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
110.
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
9<1,
Ai
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·
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89.
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
(bi
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
rn
(<:/ ~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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r~a.
? ...
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
98.
!)f).
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~*
A
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" ..................................... ------ ----------------------- - - ------.
96. P-1~-tflllfuil IR ~ ~e : M.
96.
9'1 .
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
Jto.
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~ :
A
,, ,,
l.
:l.
:.l.
4
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~
·I
·I
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
N·f.HO-K--GN() I .3()
'---·····"'''''" '''" ''''' '"'''
A
~--·····~§l-) ' '
! 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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f"'""'."'"''
I
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\ ?
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)-~
N-OTO·K·GNG ( 3 1 .. A I
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r !07.
108.
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
Ill.
!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
v.~?
~a.) vs n
!b} v s fO {i1t ,..
ft:J vs ;0 ,--· 'in
!d} vs . ·~ ·~"j'f'[
N·OTO-K-GNG 1 n .. A 1
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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$1 ~ ?
lOll.
fum ruq 75 'G t tr$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
.......... {~1
/ £( y_·· _j· .. _ .; ____./ -'J\Iv..-v .• L
b
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
IlL
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!
v:!<J
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
t ? v
tal ~ 'I
!hi Ys , f9 1, __
v 2Jt
~ (~) V;; , fi '"
«l j vs -~ -·;.v~!r
.................................... ,,,_,,,,, ________ ,,, .......... --- .. ____________________ .. www.examrace.com
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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.· :
Code:
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.
1
, 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<.o<i I 120. At;J;ertiJ>n !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.
Al
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§<i>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
............... _ .. _______________________________ _. www.examrace.com
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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
~~as- tFm' Jtllf:'l
r :n- A l
"""""'""""'""'"""'''""""""""""""""""""""""'"'--
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S'PACE FOR ROUGH WORK
(f)td '(f5'1ll ~ ~ ~
! 38 A 1
----- - .............. ................. .
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... ······--· - - ---- ----
SPAC'J<: FOR ROUGH WORK
~ C5"JlJ <}; ~ ~
N·OTO·K-GNG I 39 - A l
'"""""""""""""""""""""""""'''"""'"·--····- - -
www.examrace.com
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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 ~
~-"""""
I.
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
s.
4.
5.
~ 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?.
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