Today NTDCL test MCQ's 1 The main Drawback of Feedback system is ______ 2 The phase marin of system specifies _____ ! "n e#ectrode b$w cathode and anode is ca##ed _____ % &n CM the ()anti*ation noise depend on _____ + ,ideo ,ideo transmission on T, -roadcast is )s)a##y on ______ _____ _ . adders are pro/ided in radio recie/er for _____ 0 raphica# difference b$w nFT and pFT _______ 3 &n poison distrib)tion the probabi#ity of s)ccess is c#ose to____ 4 5ptica# fibers depend on _____ associated with optica# recei/er6 17 8imp#e f#ip f#op can be constr)cted by which ate6 11 _____ ce##s make concentration #ayer of #ens6 12 9hich of comm)nication system is diita#: 1! " 9M 9M sina# is enerated by ___ 1% &n comm)nication system fide#ity is pro/ided by____ 1+ " ba#anced mod)#ator prod)ce _____ 1. ;ecei/er ha/in poorer &F se#ecti/ity wi## ha/e poorer _____ 10 -asica##y contro##er is _____ 13
1. In PCM, quantization noise depends on 2. Video transmission in TV broadcast uses 3. Padders in radio receiver are used for 4. i!ter used for e"tractin# ori#ina! si#na! from samp!ed si#na! is $. %tructured data t&at can be used for assessin# t&e s'stem is ca!!ed (. )&en contro! unit commands *+ to perform an operation, mac&ine c'c!e is invo!ved in -&ic& step /. Matri" order 0. In Poisson distribution, probabi!it' of success is ver' c!ose to . Probabi!it' of defective bu!b is .12. Tota! bu!bs are 0. o- man' defective bu!bs 1. rap&ica! di5erence bet-een n6T and p6T is 11. 7ptica! po-er depends on 8888888 associated -it& optica! 9ber receiver. 12. Tec&no!o#' -&ic& enab!es mu!ti broadband si#na!s transmission over sin#!e mode 9ber is 13. %imp!e :ip8:op can be constructed from 14. 8888888 ce!!s ma;e concentration !a'er of !ens. 1$. )&ic& of t&e fo!!o-in# is di#ita! communication s'stem 1(. * P)M si#na! can be #enerated b' 1/. 7ptica! 9bers operation is based on 10. In communication receivers, 9de!it' is provided b' 1. * ba!anced modu!ator produces 2.
23. In position contro! s'stem, device -&ic& provides rate8feedbac; is 24. Tec&nique not app!icab!e to non8!inear s'stems is 2$. 6"cessive noise in contro! s'stem ma' resu!t in 2(. * contro!!er is 2/. =no-!ed#e of transfer function is needed for 20. Most data communications invo!vin# te!e#rap& !ines use 2. )&ic& is not true about V>+ 3. In critica!!' damped s'stem, dampin# factor of s'stem is 31. If a and b vectors are anti8para!!e!, t&en t&eir resu!tant is 32. %ca!ar product of para!!e! vectors is 33. In t&ree p&ase &a!f8-ave diode, ratio of avera#e output to ma"imum *C vo!ta#e per p&ase is 34. In t&'ristor, 8888888 a!ternatin# semiconductor !a'ers and 8888888 P? functions are present. 3$. * pro#ramer does 3(. In di#ita! e!ectronics, number of basic operations is 3/. 12/ can be represented as 30. )&ic& one is universa! #ate 3. Mutua! induction 4. T&e form in reference to a!ternatin# current -aveform represents ratio of 41. )&en current and vo!ta#e are de#ree out of p&ase, po-er is 42. T&e instantaneous va!ue of sinusoida! *C current at 4$ de#ree is 43. *n inductor operates at $ V *C, 1 ;z frequenc' and /.( m* current. T&e va!ue of inductor is 44. Conversion of *C to >C is ca!!ed 4$. In common8base transistor, output is ta;en from 4(. orm factor of 22 V, $ z *C is
4/.
C #enerator, brus&es s&ift from #eometrica! neutra! position in order to $2. Po!es of >C mac&ine are fastened to po!e core b' $3. )&ic& !oss of >C motor decreases -it& !oad increase $4. * tansfromer transforms $$. Transformer oi! must be $(. * constant current transformer s&ou!d not &ave $/. nit of potentia! is $0. If &orizonta! and vertica! components of eart& ma#netic 9e!d are equa!, t&en an#!e of dip is $. T&e 8888888 9e!d e"ists as !on# as t&e current is :o-in# t&rou#& t&e -ire. (. )&ic& -ave does not require an' p&'sica! medium for its propa#ation (1. 6!ectric dipo!e moment per unit vo!ume of die!ectric is ca!!ed (2. reen function met&od is used for (3. In piston, ma"imum temperature occurs at (4. In super &eater of t&e boi!er, 8888888 enters. ($. )&ic& copper -ire &as &i#&est tensi!e stren#t& ((. In outdoor substation, t&e !i#&tenin# arrestors are p!aced nearer to (/. )&ic& tests are performed on iso!ators (0. )&ic& one is suitab!e for transmittin# 3 ;) over 3 ;m distance (. * condenser condenses steam comin# out of /. T&e !o-est ca!ori9c va!ue coa! is
/1. rap& bet-een disc&ar#e and time is ca!!ed /2. Coa! is brou#&t to po-er station b' /3. Main dra-bac; of feedbac; s'stem is /4. =no-!ed#e of transfer function is needed for @repeatedA /$. P&ase mar#in of s'stem speci9es /(. ?on8!inearit' caused b' servometer is //. In force8vo!ta#e ana!o#', moment of inertia is ana!o#ous to /0. *t brea;a-a' point, severa! branc&es of root !oci coa!ese because t&e s's tem c&aracteristic equation &as /. or zener re#u!ation, -e dont -ant zener current to fa!! be!o- ;nee current because 0. * semiconductor device is connected in series -it& batter' and resistance. If batter' po!arit' is reserved, t&e current drops a!most to . T&e device ma'be 01. or same pea; vo!ta#e, -&ic& -aveform -i!! &ave !east rms va!ue 02. 6!ectrode bet-een cat&ode and anode is ca!!ed 03. reatest possib!e amp!i9cation is ac&ieved in
N;"L >N59LD 16chief minister of )n?ab: 8hahba* sharif 26@ow many terms Nawa* sharif ser/ed as M Three !6"bd)# sattar edhi died after fiht with a disease of >idney AcorrectB %6F&F" wor#d c)p 2713 wi## be he#d in ermany ;)ssia AcorrectB -ra*i# Qatar Awi## he#d 2722 9cB
+69ho shared the nob#e peace award 271% with ma#a#a yo)saf*ai >ai#ash satyarthi .6&sha( dar is Finance minister 069ho is c)rret president of india arnab m)kher?ee 369ho won the 271+ cricket wor#d c)p ")stra#ia 46;ecent#y re#iio)s persona#ity banned by ban#adesh akir naik 176ak&ran as pipe#ine is Friendship =nity eace AcorrectB 116T& and m#n arreed on e#ection riin in 27 1! to form E&T ?)dicia# commission AcorrectB 126 9hen army p)b#ic schoo# incident happened 1.dec 271% AcorrectB 1!6 5peration *arbea*ab was started to et rid of Terrorism 1%6 "##ai >hwar dam is b)i#t by pak in >pk 1+6 Famo)s ____ "m?ad sabri was ki##ed in ?)ne 271. Qawwa# 8=-ECT 16 Form factor is the ratio of ;ms /a#)e to a/ /a#)e eak /a#)e to ;ms /a#)e ;M8 /a#)e to peak /a#)e "/ /a#)e to peak /a#)e
26 Form factor of 227/ +7@* sin)soida# /o#tae sina# is 16+ 161% 1611 763+ !6 &nstantaneo)s /a#)e of sin)soida# wa/e at %+ deree is e()a# to ;M8 ,a#)e "/erae /a#)e eak /a#)e eak to peak /a#)e %6 120 can be written as 7111 1111 1111 1111 1777 7777 1111111 +6 The main f)nction of transfer f)nction of any system is to To et o)tp)t from inp)t .6 =nit f potentia# is ,o#t 06 F)nction of transformer is to transform ower C)rrent ,o#tae 36 &f the #oad of a dc motor increases Decrease eddy c)rrent #osses Core #osses 46 Thyristor ha/e __ #ayers of semicond)ctors and __ pn ?)nctions 2 ! ! % % ! ! ! 176 " semicond)ctor de/ice is connected to battery )pon chanin the po#arity of battery the c)rrent red)ced to *ero de/ice is N type semicond)ctor type semicond)ctor N ?)nction
116 9hich confi)ration of transistors ha/e hihest ain Common emitter Common base Common co##ector None 126 &n common base mode the o)tp)t is taken from mitter Co##ector From both 1!6 &n dep#etion type M58FT b)bb#e is on ate Drain 8o)rce 1%6 rincip#e of fiber optics transmission s Tota# interna# ref#ection 1+6 &n fiber optics different cons)mers m)#tip#e
276 8team is entered in condenser after #ea/in from T)rbine conomi*er 8)per heater 216 8team entered into s)per heater is 9et steam @ot steam Co#d steam 226 5f which sina# the ;M8 /a#)e is sma##er 8in)soida# Trian#ar 8()are F)##wa/e rectified 2!6 "dmittance is reciproca# of ;eactance &mpedance 2%6 reen f)nction )sed for6666666666 ordaniary differentia# e()ations partia# ode ist order for 2nd order ode 2+6 The disad/antae of feedback contro# system is:: &nstabi#ity &nacc)racy &nefficiency 2.6 Ma< /a#)e of cosine occ)rs at 7 47 %+ 206 8imp#e E> f#ip f#op can be b)i#t by )sin "ND 5; N5; G5; 236 Transformer 5i# sho)#d be free from odo)r
ases moist)re 246 N)mber of steps to e
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?T>C @1( B 1 B 21(A T6%T @!ue oo;A Current *5airs 1/ Duestions D.1 I* -or!dcup 210 -i!! ta;e p!ace in aA erman' bA . nit' pipe!ine D.$ Harb8e8azb operation -as carried out to overcome *. Terrorism . Po!itica! C. >. *!! of t&e above
D.( Current president of india is *. . *bu! ;a!am *zad C. Parnab Mu;aree >. V.P. %in#& D./ Current C&ief Ministor of Punab is *. %&e&baz %&areef D.0 *!!ai =&-r under constructed dam in -&ic& province *. Punab . a!oc&istan C. =P= >. %ind& D. Mu&ammad Is&aq >ar is current minister of . inance D.1 amous GGGGGGGGGGG *mad %abri s&ot and died in =arac&i. *. Da--a! D.11 *ttac; on *P% -as too; p!ace on C. 1( >ec 214 D. 12 Ma!a!a Jousufzai -on nobe! prize -it& >. =ai!as& %at'art&i D. 13 Pa;istan beat GGGGGG in 21( *sia ;abaddi cup C. India D. 14 )&o -on cric;et -or!d cup 21$ . *ustra!ia D. 1$ )&ic& Is!amic sc&o!ar recent!' banned in an#!ades& C. Ha;ir ?ai; D. 1( )&o dec!ared a !a- a#ainst &arassment of c&i!dren C. ?IC6 D. 1/ 6d&i %b died due to -&ic& disease *. =idne'
