2011 ECIL Placement PaperHyderabad

  • CategoryEngineering
  • Sub CategoryPlacement Papers
  • LocationHyderabad
  • CompanyECIL
  • Posted date on our Website01 February 2011

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Here are the details of 2011 ECIL Placement Paper job in ECIL. This job or placement paper has been sourced from either company website or newspaper or other media and from students who appeared for this job. User is requested to verify the data before applying for the job.

Welcome to ECIL Placement Papers 2011. Here you will find ECIL Placement Papers Pattern and Download questions of ECIL Placement Papers 2011 with Answers & Solutions.

2011 ECIL Placement Paper:-

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

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

2. 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

3. 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

4. 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

5. 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

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

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

7. 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

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. 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}

12. At room temperature, the diffusion and drift constants for holes in a P-type semiconductor were measured to be Dp = 10 cm^2/s and µp = 1200 cm^2/V-s, respectively. If the diffusion constant of electrons in an N-type semiconductor at the same temperature is Dn = 20 cm^2/s, the drift constant for electrons in it is

a) µn = 2400 cm^2/V-s b) µn = 1200 cm^2/V-s c) µn = 1000 cm^2/V-s d) µn = 600 cm^2/V-s

13. A common LED is made up of

a) intrinsic semiconductor b) direct semiconductor c) degenerate semiconductor d) indirect semiconductor

14. For the MOSFET in the given circuit, the threshold voltage Vt = 0.5V, the process parameter KP = 150 µA/V^2 and W/L = 10. The values of Vd and Id, respectively, are

a) Vd = 4.5 V and Id = 1 mA
b) Vd = 4.5 V and Id = 0.5 mA
c) Vd = 4.8 V and Id = 0.4 mA
d) Vd = 6 V and Id = 0 mA

15. A negative feedback is applied to an amplifier with the feedback voltage proportional to the output current. This feedback increases the

a) input impedance of the amplifier b) output impedance of the amplifier c) distortion in the amplifier d) gain of the amplifier

16. Let c(t) be the unit step response of a system with transfer function K(s+a)/(s+K). If c(0+)=2 and c(∞)=10, then the values of a and K, respectively, are

a) 2 and 10 b) -2 and 10 c) 10 and 2 d) 2 and -10

17. The loop transfer function of an LTI system is G(s)H(s)= K(s+1)(s+5) / s(s+2)(s+3). For K>0, the point on the real axis that DOES NOT belong to the root locus of the system is

a) -0.5 b) -2.5 c) -3.5 d) -5.5

18. Which one of the following relations is not correct (symbols have their usual meaning)?

a) del X E = - ∂B/∂t b) del X H = J + ∂E/∂t c) del.D = ρv d) del.B = 0

19. The electric field component of a uniform plane wave propagating in a lossless magnetic dielectric medium is given by E(t,z)=ax 5cos(10^9 t – 20/3 z)V/m. If η0 represents the intrinsic impedance of the free space, the corresponding magnetic field component is given by

a) H(t,z)= ay 5/2 η0 cos(10^9t – 20/3 z)A/m
b) H(t,z)= ay 10/ η0 cos(10^9t – 20/3 z)A/m
c) H(t,z)= az 5/2 η0 cos(10^9t – 20/3 z)A/m
d) H(t,z)= az 10/ η0 cos(10^9t – 20/3 z)A/m

20. A circle C2 is concentric with the circle C1 : x^2 + y^2 -4x +6y -12 =0 and has a radius twice that of C1. The equation of the circle C2 is

a) x^2 + y^2 -4x +6y -13 =0 b) x^2 + y^2 -4x +6y -87 =0 c) x^2 + y^2 -4x +6y -100 =0 d) x^2 + y^2 -4x +6y -88 =0

About ECIL:-

ECIL- Electronics Corporation of India Limited was established under the Department of Atomic Energy on 11th April, 1967 with a view to generate a strong  indigenous capability in the field of professional grade electronics. The initial accent was on total self-reliance and ECIL was engaged in the Design, Development, Manufacture and Marketing of several products with emphasis on three technology lines viz. Computers, Control Systems and Communications. Over the years, ECIL pioneered the development of various complex electronics products without any external technological help and scored several 'firsts' in these  fields prominent among them being country's, First Digital Computer, First Solid State TV, First Control & Instrumentation of Nuclear Power Plants, First Earth Station Antenna, First Computrized Operator Information System, First Radiation Monitoring & Detection Systems, First Automatic Message Switching Systems, First Operation & Maintenance Center For E-108 Exchange, First Programmable Logic Controller, First Solid State Cockpit Voice Recorder, First Electronic Voting Machines. The company played a very significant role in the training and growth of high caliber technical and managerial manpower especially in the fields of Computers and Information Technology.

Why ECIL - Why Should i join ECIL?:-

ECIL is an organization with a global foot print, you will notice our employees come from the most diverse of backgrounds: be it location, race, educational background, faith, all working towards one common goal. This diversity manifests to boundless energy, which percolates to all levels across the organization.

Right from inception, ECIL has been a Technology-driven Company. Starting with supporting the Country's Atomic Energy Programme, the Company pioneered a number of technologies and introduced a number of products for the first time in the Country. In the formative years, ECIL was able to attract the best brain to facilitate the pursuit of its endeavors.

Contact Details:

Address of ECIL:-


Electronics Corporation of India Limited,
Phone : 91-40-27120131(10 lines)


Electronics Corporation of India Limited,
Panagal Building Ground Floor,
IA,Jeenis Road, Saidpet,
Chennai-600 015.
Phone :91-44-24349085.


Electronics Corporation of India Limited,
1207,Veer Sarvarkar Marg,
Dadar (Prbhadevi). Mumbai-400 028.
Phone : 91-22-24313480.


Electronics Corporation of India Limited
B-2,Local Shopping Center,
DDA,B-7, A Block ,Ring Road,
NARAINA,New Delhi-110028.
Phone : 91-11-25771049.


Electronics Corporation of India Limited,
Leeman`s Complex,2nd Floor,
30/1,Cunningham Road,
Bengaluru-580 052.
Phone : 91-80-22267082.

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