ECIL Graduate Engineer Trainee (GET) Papers

I am looking for previous years question papers of ECIL graduate engineer trainee (GET) so please provide me the same?

[Raman Vij]

Here I am providing you previous years question papers of ECIL graduate engineer trainee (GET).

1. The current I in the given network.
a) 1A
b) 3A
c) 5A
d) 7A

2. For the Delta‐ Wye transformation in given figure, the value of the resistance R is.
a) 1/3 ohms
b) 2/3 ohms
c) 3/2 ohms
d) 3 ohms

3. In the given network, the Thevenin’s equivalent as seen by the load resistance Rl is
a) V=10 V, R= 2ohms
b) V=10V, R=3 ohms
c) V=15V, R= 2ohms
d) V=15V, R=3 ohms

4. The current I in a series R‐L circuit with R=10 ohms and L=20mH is given by i=2sin500t A. If v is the voltage across the R‐L combination then i
a) lags v by 45 degree
b) is in‐phase with v
c) leads v by 45
d) lags v by 90

5. In thr given network, the mesh current I and the input impedance seen by the 50 V source, respectively, are
a) 125/13 A and 11/8 ohms
b) 150/13 A and 13/8 ohms
c) 150/13 A and 11/8 ohms
d) 125/13 A and 13/8 ohms

6. A voltage sourcehaving a source impedance Z = R + jX can deliver maximum Average power to a load impedance Z, when
a) Z = R + jX
b) Z = R
c) Z = jX
d) Z = R –jX

7. In the given circuit, the switch S is closed at t=0. Assuming that there is no initial Charge in the capacitor, the current i(t) for t>0 is
a) V/R e^ (‐2t/RC)
b) V/R e^ (‐t/RC)
c) V/2R e^ (‐2t/RC)
d) V/2R e^ (‐t/RC)

8. For the circuit in given figure, if e(t) is a ramp signal, the steady state value of the Output voltage v(t) is
a) 0
b) LC
c) R/L
d) RC

9. For the series RLC circuit in given figure, if w=1000 rad/sec, then the current I (in Amperes) is
a) 2 ∟‐15
b) 2 ∟15
c) √2∟‐15
d) √2∟15

10. The Y‐parameter matrix (mA/V) of the two‐port given network is
a) [2 ‐1 ‐1 2]
b) [2 1 ‐1 2]
c) [1 ‐2 ‐1 2]
d) [2 1 1 2]

11. The maximum number of trees of the given graph is
a) 16
b) 25
c) 100
d) 125

12. Given figure shows a graph and one of its trees. Corresponding to the tree, the group of branches that CAN NOT constitute a fundamental cut set is
a) 1,2,3
b) 1,4,6,8,3
c) 5,6,8,3
d) 4,6,7,3

13. The Y‐parameter matrix of a network is given by Y=[1 1 ‐1 1] A/V. The Z11 parameter of the same network is
a) ½ ohms
b) 1/√2 ohms
c) 1 ohms
d) 2 ohms

14. For the given circuit, the switch was kept closed for a long time before opening it at t=0. The voltage v(0+) is
a) ‐10 V
b) ‐1 V
c) 0V
d) 10 V

15. The input impedance of a series RLC circuit operating at frequency W=√2w, w being the resonant frequency, is
a) R‐j(wL/√2) ohms
b) R+j(wL/√2) ohms
c) R‐j√2wL ohms
d) R‐j√2wL ohms

16. The threshold voltage V is negative for
a) an n‐channel enhancement MOSFET
b) an n‐channel depletion MOSFET
c) an p‐channel depletion MOSFET
d) an p‐channel JFET

17. At a given temperature, a semiconductor with intrinsic carrier concentration ni= 10 ^ 16 / m^3 is doped with a donor dopant of concentration Nd = 10 ^ 26 /m^3. Temperature remaining the same, the hole concentration in the doped semiconductor is
a) 10 ^ 26 /m^3
b) 10 ^ 16 /m^3
c) 10 ^ 14 /m^3
d) 10 ^ 6 /m^3}

18. When operating as a voltage regulator, the breakdown in a Zener diode occurs due to the
a) tunneling effect
b) avalanche breakdown
c) impact ionization
d) excess heating of the junction.

19.If the common base DC current gain of a BJT is 0.98, its common emitter DC current gain is
a) 51
b) 49
c) 1
d) 0.02

20. Negative resistance characteristics is exhibited by a
a) Zener diode
b) Schottky diode
c) photo diode
d) Tunnel diode

ECIL graduate engineer trainee (GET) paper

1. Consider the following expressions indicating the step or impulse response of an initially relaxed control system-

1. (5 – 4e-2+) u(t)
2. (e-2t +5) (u(t))
3 .V(t) + 8e-2t u(t)
4 . V(t) + 4e-2t 4(t)

2. Those which correspond to the step and impulse response of the same system include- 1&3
Which is the following relate to rational transfer function of a system-

1. Ratio of Fourier transform of output to input with zero initial conditions.
2. Ratio of Laplace transform of output to input with zero initial conditions.
3. Laplace transform of system impulse response.
4. Laplace transform of system unit step response select the correct answer using the codes given below.

Codes
a.) 1 and 4
b.) 2 and 3
c.) 1 and 3
d.) 2 and 4

3. For the signal g (t) – 10 cos (50 pt) cos2 (150at)
The Nyquist sampling state in t seconds is

a.) 150 samples per second
b.) 200 samples per second
c.) 300 samples per second
d.) 350 samples per second

4. In the case of a 70 MHz 1F carries for a transponder band width of 36 MHz; energy must lie between – MHz.

a.) 34 and 106
b.) 52. And 88
c.) 106 and 142
d.) 34 and 142

5. Radar used to eliminate clutter in navigational application is

a.) Pulse radar
b.) Tracking radar
c.) MTI radar
d.) Mono pulse radar

6. The 1.55 mm windows is not yet in use with fiber optic systems because –

a.) The attenuation is higher than at 0.85 mm
b) The attenuation is higher than at 1.3mm
c.) Suitable laser devices have not yet been developed
d.) It does not lend itself to wavelength multiplexing

7. Pre-emphasis in FM systems involves-

a.) Compression of the modulating signal
b.) Expansion of the modulating signal( placementpapers.fresherjobs4u.com)
c.) Amplification of lower frequency components of the modulating signal.
d.) Amplification of higher frequency components of the modulating signal.

8. In a terrestrial microwave system transmission of signals is achieved through-

a.) reflection from the ionosphere
b.) line of sight mode
c) reflection from the ground
d.) diffraction from the stratosphere.

9. Case grain feed is used with a parabolic reflector to

a.) increase the gain of the system
b). increase the bandwidth of the system
c.) reduce the size of the main reflector
d.) allow the feed to be placed at a convenient point.

10. In most microwave communication link rain drop attenuation is caused due to-

a.) scattering of microwaves by water drops of specific size.
b) scattering of microwaves by a collection of droplets acing as a single body.
c.) absorption of microwaves by water and consequent heating of the liquid
d.) absorption of the microwaves by water vapor in the atmosphere.

11. When a (75 – j40)W load is connected to a coaxial line of Z0 = 75 W at 6MHz then the load matching on the line can be accomplished by connecting-

a.) A short – circuited stub at the load
b.)An inductance at the load
c. )A short circuited stub at a specific distance from the load
d.)none of the above

12. As compared to analog multimeters, digital multimeters are –

a.) less accurate
b.) more accurate
c.) equally accurate
d.) none.

13. When a signal of 10 mV at 75 MHz is to be measured then which of the following instruments can be used –

a.) VTVM
b.) Cathode ray oscilloscope
c.) Moving iron voltmeter
d.) Digital multimeter

14. Amplifier of class B has high theoretical efficiency of 78.5 percent because –

a.) It is biased almost to saturation
b.)Its quiescent current is low
c.)It’s output is an exact replica of it’s input
d.)It is biased well below cut off

15. The coupling that produces minimum interference with frequency response is-

a.) Direct coupling
b.)Impedance coupling
c.) R C coupling
d.)Transformer coupling

16. A superconductor is a –

a.) A material showing perfect conductivity and Meissner effect below a critical temperature
b.) A conductor having zero resistance(placementpapers.fresherjobs4u.com)
c.) A perfect conductor with highest di-magnetic susceptibility
d.) A perfect conductor which becomes resistance when the current density through it exceeds a critical value

17. When an inductor tunes at 200 KHz with 624 pF capacitor and at 600 KHz with 60.4 pF capacitor then the self capacitance of the inductor would be –

a) 8.05 pF
b) 10.05pF
c.) 16.01pF
d.) 20.01pF

18. The Q of a radio coil –

a.) is independent of frequency
b.) increases monotonically as frequency increases
c.) decreases monotonically as frequency increases
d.) increases upto a certain frequency and then decreases beyond that frequency

19. When a generator of internal impedance and operating at 1GHz feeds a load via a coaxial line of characteristic impedance 50 ohm then the voltage wave ratio on the feed line is –

a.) 0.5
b.) 1.5
c.) 2.5
d.) 1.75

20. The coding system typically used in digital telemetry is –

a.) PPM (pulse position modulation)
b.) PAM (pulse amplitude modulation)
c.) PCM (pulse code modulation)
d.) PDM (pulse duration modulation)

21. Radiation pyrometers are used for the measurement of temperature in the range of –

a.) -2000C to 5000C
b.) 00C to 5000C
c.) 5000C to 12000C
d.) 12000C to 25000C

22. RF amplifier of an A.M. receiver is normally biased in –

a.) Class ’A’
b.) Class ’b’
c.) Class ’C’
d.) None

23. The value of gate voltage for the operation of enhancement of only N channel MOSFET has to be –

a.) High positive
b.) High negative
c.) Low positive
d.) Zero

Hii Guys , Here Will you please Provide me Last year ECIL Graduate Engineer Trainee (GET) Papers For my Better Exam Preparation ?

[Shaleen]

Friend Have a look , Here I am Providing Previous year ECIL Graduate Engineer Trainee (GET) Papers For your Help :


Duration: 2 hours

No. of question: Only 50 (Technical only)

1 question= 3 marks

Negative marking: 1/3 rd

There are no question from Aptitude, GA. So question paper was based on technical based
Some question are.

Which turbine used for low head (kaplan, pelton etc.)

Two x-mer a & b have 50hz and 400hz frequency. Which is big a or b

What is the use of ready signal in 8085 up

Two lamp connected in series than total power drawn?

What is unit of flux density?

What is the ratio of magnetic field intensity to flux density?

One question from synchronous motor

Calculate Rth of given ckt?

Two questions from thevnin theorem

What is use of MOV?

Calculate the frequency of parallel Resonance ckt?

One question from OPAM (calculate o/p voltage)?

Calculate load current of Bridge rectifier?

One program on C?

Which diode made by metal& semiconductor?

Which sensor not used for measurement of wight? (capacitor, strain gauge, piezoelectric)

Which GATE used as a Comparator( OR, AND, EX-OR, None of these)

One question from Lagging-leading?

Calculate the Laplace of te^-at?

Given a characteristics equation of stable system find value of a?

When we used a negative feed back in Oscillator?

Which is used for amplification purpose (Ans. Transistor)

In CE configuration why Capacitor used parallel with resistor of emitter?

If sin i/p is given in vertical plate of CRO and nothing on horizontal what will happen?

Calculate the Time constant of RC ckt

If sinusoidal ip is given to schimit trigger what will be output?

Calculate the RMS value of given voltage?

Filter roll off characteristics on the basis of active/passive, order, type of components?