ECIL questions pattern

Can you provide me Electronics Corporation of India Limited questions pattern?

ECIL was setup under the Department of Atomic Energy on 11th April, 1967. ECIL (Electronics Corporation of India Limited) Recruitment Written Test Questions

Exam pattern:-
The selection process will be through a written test and interview.
ECIL Written Test
Time Limit :2 Hours
Topics to Concentrate
Engineering Degree Syllabus in respective of discipline through OMR Sheet
Aptitude

PAPER consists of 50 Technical questions mainly on Networks, Controls, Radars (PRF, max unamb range), analog electronics.
Very few questions on communications, digital elec, signals.

Some question are given below:-
1. Wave guide acts as ---(high pass filter)

2. Bolometer is used to measure --( microwave freq) --(not sure)

3. Routing occurs in which layer --( Network layer)

4.Beta radition emits ---

5.int p=5, q=6;
p=q;
q=p;
what are values of p and q (6,6)

6.What is steady state error of T/F of (1/1+st) for ramp i/p.

7.Given G(s) of unity feed back ,Geta value ,find frequency (Wn)

8.Which diode has a Metal junction ( schotky diode)

9.Major disadvantage of FM...

a) Complex circuitry b) LOS c) interchannel interference..

10.for jfet to operate in linear mode ..Vgs is
a) forward biased
b) reverse biased
c) no bias
d) either forward or reverse


for more question you should reffered below link as
placement.freshersworld.com/placement-papers

Electronics Corporation of India Limited (ECIL) conducts examination for the post of Graduate Engineer Trainee.

The exam contain following sections:

Aptitude: 50 marks
Technical: 100marks..

Here, I am giving you sample question for the ECIL examnination.

1) Isotopes have _____?
a) unequal protons b) unequal electrons c) equal electrons and unequal neutrons d) none

2) Which of the following have least ripple factor?
a) Half wave rectifier b) Fullwave rectifier c) Bridge rectifier d) Transformer tuned rectifier

3) Which of the following has nonlinear output?
a) Differentiator b) Integrator c) mixer d) Class A amplifier

4) What is the gray code for 5?

5) Unambigious range when PRF=2KHZ is ___ ?

6) Phase sensitive demodulators is used in instruments___?
a) To measure phase angle between two AC signals b) AM demodulators c) PM demodulators d) None

7) In a transmission line maximum power is delivered to load when standing wave ratio is ____?
a) 1:1 b) 2:1 c) 1:2 d) 1:sqrt (2)

8) To design a 16KB memory system using chips having 12 address lines and 4 data lines, the number of such chips required_______?
a) 1 b) 2 c) 3 d) 4

9) A 1mw signal is attenuated at the rate of 5dB/1000ft. What is the power level into receiver that is 6000ft from signal source_____?
a) -10dBm b) -20dBm c) -30dBm d) -6dBm

10) Dominant form of distortion in simple Push-Pull Amplifier____?

11) When the transmissionline is lossless relation between R,L,G and C---?

12) v(t)=2sin(2000wt)+0.3cos(4000piet)+0.1 find sampling frequency____?

13) At what condition gain of feedback system =(1/B)___?
a) AB<<1 b) AB>>1 c) B>>1 d) A>>1

14) RAID configuration of disks are used to provide___?

15) To store a floating point number, in a computer system, having 16-bit mantissa and 8-bit exponent(each in 2's complement) what are the smallest and largest positive values which can be stored___?

16) Semaphores are used for___?

17) For a 13-bit DAC(0-10v) when a binary input increased by 1 output(V0) increases by ____?

18) For a coaxial cable Z0(charecteristic impedance)=75ohms, (load impedance)ZL=75ohms and connected source is 10V DC then V0(output)=___?

19) Rise time =2*10^(-7) find bandwidth==?

20) Rise time for 1st order system when 1v input is 1second and for 2v input is ___?

21) X(t) is the input function and h(t) is the impuse response for the system, then output can be found using____?

22) (Z)^-1 represents___?

23) A source 10Sqrt(2) sin(wt) having internal resistance 10+40i is connected with a load 10-40i, find the optimum power delivered to the load___?

24) Two voltages sources 0f 1.5v having internal resistances each 0.3ohm and 0.6ohm are connected in parallel. A 0.8ohm is connected accross the combination, find the heat generated___?

25) Four easy questions on OPAMP circuits----!(on schmitt trigger, Integrator, find Zin)

26) Given UV light frequency and asked frequency____?

27) In a meadium having Er=2 and Ur=2(Relative permitivity and relative permiability) find the velocity of the wave____?

28) A question on Zenor diode (asked max and min load currents)?

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Answered By StudyChaCha Member