kelt ron model

7/24/2019 Kelt Ron model

1/5

MAHESH KUMAR ALKA SINGH

KELTRON EXAM 2 15 MODEL PAPER

Time: 6 minutes Max Marks: 5

1. Who is known as Frontier Gandhi

a)Khan Abdul Gaffer b)Sardar Vallabhai Patel c)K.Kelappan d)Aurbindho ghosh

2. As per the Right to information act what is the maximum time period to get

information regarding the matters of human rights

a)30 days b)48hours c) 45days d)7 days

3.

Which of the following countries is an example for Buffer statea)Afghanistan b)Nepal c)Srilanka d) China

4. The number of districts in newly formed Telangana state

a)9 b)10 c)11 d)12

5. Who won nobel prize for peace in 2015

a)Kailesh Sathyarthi b)Malala Yousafali c)Tunisian National dialogue Quartet d)Both a

and b

6.

KELTRON stands for

a)Kerala State Electronics Development Cooperation limited

b)Kerala Electronics and Technical Research Cooperation limited

c)Kerala State Electronics and Technical Research Cooperation limited

d)Kerala State Electronics Development and Technical Research Cooperation limited

7. The present Secretary general of UN

a)U thant b)Koffi Annan c)Ban Ki Moon d)Terry Parkker

8. Southern most point of Indian main land

a)Indira point b)Kanyakumari c)Trivandrum d)Portblair

9. The largest backwater lake in kerala

a)Periyar b)Vembanad c)Pampa d)Ashtamudi

10.First education minister of kerala state


2/5


a)EMS b)Joseph Mudasery c)K M Panikar d)Pattam Thanu Pillai

11.Two capacitance of 1040F and 1040F are connected in parallel to which again two

parallel capacitors of 10F each are connected in parallel. The total equivalent

capacitance of the given combination is

a)1050F b)3000F c)2100F d) 525F

12.The maximum power that a 12 V dc source with an internal resistance of 2ohm can

supply to a resistive load is

a)72W b)36W c)18W d)48W

13.A parallel RL network is fed with current from sinusoidal source. The current

flowing through R is 12A and through L is 16A (both in same direction). Then the

total current supplied by the sinusoidal source is

a)28A b)4A c)20A d)8A

14.Two coils have self inductance of 0.09H and 0.01H and a mutual inductance of

0.015H. The coefficient of coupling between the coils is

a)0.06 b)0.05 c)0.5 d)0.6

15.Consider the following statements 1: eat

u(t) has a well defined fourier transform.

2: eat

u(t) has a limitedly defined fourier transform. 3: u(t) has a well defined fourier

transform 4: (t) has a limitedly defined fourier transform. Which of the following

statements are correct

a)1 only b)1and 2only c)1,2and 3only d)1,2,3 and 4

16.The final value of signal f(n) having Z transform as (Z2)(Z3)/(Z1)(Z6) is

a)2/5 b)1 c)2/5 d)None

17.If f(t) is real and odd function then its fourier transform F(w) will be

a) Real and Odd function of w b) Real and Even function of w c) Imaginary and Odd

function of w d)Imaginary and even function of w

18.An ideal lowpass filter has a cutoff frequency of 100Hz. If the input to the filter in

volts is V(t)=30Sin1256t, then the magnitude of output of filter will be

a)0 b)20V c)50V d)100V

19.The dynamic range of an 10bit ADC is approximately

a)1024 b)512 c)256 d)64


3/5


20.The number of NAND gates required for implementing a Half adder circuit is

a)1 b)3 c)4 d)5

21.A Mod 6 and Mod 8 counter are cascaded then the resultant digital counter will be

a)Mod 8 b)Mod 6 c)Mod 48 d)Mod 14

22.In 8085 Microprocessor the highest priority is given to

a)TRAP b)INTR c)RST 5.5 d)DMA

23.Which of the following is the transmission application of SSB a)Voice signals

b)Audio signals c)Video signals d) Both a and b

24.For the transmission and reception of television signals the modulation schemes

used can bea) AM and FM b)SSB and FM c)VSB and FM d)All of the above

25.The Nyquist sampling rate of Sinc3100t isa) 100Hz b)200Hz c)300Hz d)600Hz

26.Pre emphasis is

a)Artificial boosting of low frequency signals to increase SNR

b) Artificial boosting of High frequency signals to increase SNR

c)Removal of high frequency components of the signal

d) Removal of low frequency components of the signal

27.A P type semiconductor is made by addition of which of the impurities

a)Phosphorous b)Aluminium c)Arsenic d)Bismuth

28.The advantage of capacitor filter in a rectifier is that a) It will increase charging

current thereby current rating b)It will decrease conduction period for diode c) Both a and

b d)None of the above

29.Among Power amplifiers distortion is least for

a) Class A b)Class D c)Class C d)Class AB

30.

Which of the following has best switching application

a)JFET b)MOSFET c)BJT d)Triode

31.For a fixed biased BJT circuit having hfe value of 100,Rc=94K and Rb=47K,

stability factor is

a)3 b)101/301 c)101 d)1.5


4/5


32.For a ten degree rise in temperature the leakage current due to minority carriers

will approximately

a)doubles b)increases by 25mA c) decreases by 25mA d)become 4 times

33.

np=ni2is called

a)Charge neutrality principle b)Einsteins relation c)Mass action law d)Fermi dirac

distribution

34.In rectangular waveguides the modes with same cutoff frequency are called

a) dominant modes b)evanescent modes c)degenerate modes d)cutoff modes

35.In transmission lines the standing wave ratio lies in the interval

a)[0,1] b)[0,] c)[1,] d)[,]

36.The directivity of an isotropic antenna is a)1 b)0 c) d)depends on radiated power

37.The characteristic polynomial of a stable causal system is given as S3+S

2+KS+3.

Then the possible constraints on and K area) >0, K0, K>3 c) 3 d)


5/5


43.A man travelled certain distance by car at a speed of 50km/hr and came back by

running at a speed of 8km/hr. The journey took 2 hour 54minutes to complete.

What distance did he travel by train.

a)10km b)20km c)30Km d)40km

44.

The difference between Compound Interest and Simple Interest for Rs. 6400 for 2

years at 12.5per annum isa)50 b)100 c)200 d)150

45.Introducing a man the women said, his wife is the only daughter of my father. How

is that woman related to mana)Husband b)Wife c)Mother d)Father

46.The total number of squares in a chess board isa)128 b)64 c)204 d)256

47.

If 5% of A is 20% of B and 10% of B is 15% of C then if C is 1500, A is a)2250b)9000 c)5000 d)12750

48.If 23rd

October 2013 is Wednesday then 23rd

October 2012 was

a)Sunday b)Monday c)Tuesday d)Thursday

49.The mirror image of time 10.20 in a clock will give you

a)1.20 b)1.40 c)2.20 d)2.40

50.

If A:B=2:3 and B:C=5:7 then A:B:C = ?a)10:15;21 b)15:10:21 c)21:10:15 d)15:21:10

**************************************************************

kelt ron model

Documents