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Frequently Asked IES EC Exam Pattern, IES EC Questions with Answers Page 4

(#M40019769) IES EC QUESTION EMT (2008 paper-1 obj) Keep an EYE

In a charge-free space, the Poisson's equation results in which one of the following?

Option
a) Continuity equation
b) Maxwell's equation
c) Laplace equation
d) None of the above

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40019770) IES EC QUESTION (2008 paper-1 obj) Keep an EYE

Q. Which one of the following statements is not correct?

Option
a) Data loggers are usually of digital types
b) A digital voltmeter is essentially and A-D converter
c) A servo-type potentiometric recorder has a frequency response better than that of a galvometric recorder
d) In digital transducers, there are ergonomic advantages in presenting digital data.

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40031877) IES EC QUESTION analog(2006 paper-2 obj) Keep an EYE

Q. When used for amplification, the output port side of a BJT behaves as controlled current source. According to the above, the variation of which one of the following does not change the output current of an
ideal BLT? (The BJT is being used in a common emitter amplifier circuit)

a. Load resistance
b. Collector to base bias voltage
c. Both load resistance and collector to base bias voltage
d. Base-emitter bias voltage

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40106475) IES EC QUESTION series Keep an EYE

Below given are two formulae for long summation.
1) 1 + 2 + 3 + 4 + ................ + n = n(n+1)/2
2) 1^2 + 2^2 + 3^2 + 4^2 + ........ + n^2 = 1/6 n(n+1)(2n+1)
The value of
(1% of 2 + 2% of 3 + 3% of 4 + ........ + 99% of 100) will be

Asked In IES EC A M ANKIT KALLURAYA (9 years ago)

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(#M40031873) IES EC QUESTION communication(2006 paper-2 obj) Keep an EYE

Q. Match List I (Modulation) with List II (power input to Antenna in Watts) and select the correct answer using the code given below the lists:

List-I
A. 100% AM
B. 50% AM
C. 1.0% AM
D. FM
List-II
1. 1.5
2. 1.125
3. 1.005
4. 1.00
Codes;

__A B C D
a. 1 2 3 4
b. 2 4 1 2
c. 1 4 3 2
d. 3 2 1 4

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40031876) IES EC QUESTION analog(2006 paper-2 obj) Keep an EYE

Q. Consider the following parameters of a hybrid-it equivalent circuit of BJT:
1. Transconductance (gm)
2. hfe
3. hie
Which of the above parameters vary with temperature in similar manner (all of them decrease or all of them increase)?

Select the correct answer using the codes given below:

a. Only 1 and 2
b. Only 2 and 3
c. Only 1 and 3
d. 1, 2 and 3

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40031872) IES EC QUESTION signal & system (2006 paper-1 obj) Keep an EYE

Q. Which one of the following is the correct statement? The continuous time system described by y(t) = x(t^2) is

a. causal, linear and time-varying
b. causal, non-linear and time-varying
c. non-causal, non-linear and timeinvariant
d. non-causal and time-variant

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40031871) IES EC QUESTION communication (2006 paper-1 obj) Keep an EYE

Match List-I (Application of Signals) with
List-II (Defamation) and select the correct
answer using the code given below
List-I
A. Reconstruction
B. Over sampling
C. Interpolation
D. Decimation
List -II
1. Sampling rate is chosen significantly
greater than the Nyquist rate
2. A mixture of continuous and discrete
time signals
3. To convert the discrete time sequence
back to a continuous time signal and
then resample
4. Assign values between samples and
signals
Codes;
A B C D
a. 3 4 1 2
b. 2 1 4 3
c. 3 1 4 2
d. 2 4 1 3

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40031865) IES EC QUESTION EMT (2006 paper-1 obj) Keep an EYE

Q. Which one of the following is the correct statement? A rectangular coaxial line can support
a. only TEM mode of propagation
b. both TEM and TE modes of propagation
c. either TE or TM mode of propagation
d. TEM, TE or TM mode of propagation

Asked In IES EC Chandni Maurya (11 years ago)

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(#M40019791) IES EC QUESTION English(2008 GAT) Keep an EYE

Question -
S1: Nowadays we pay a great deal of attention to pure air, open windows and garden cities.

S6: Pasteurised milk is milk which has been treated in this way.

P: Another useful discovery of Pasteur's was the process, now called, pasteurization.
Q: Pasteur was one of the first to show how necessary all these are if we are to fight against germs and disease.
R: Pasteur helped them by showing that by heating win or milk to a temperature of 60 degree Centrigrade, the germs were made harmless.
S: Some wine-growers were troubled by a germ which has turned their win sour.
Which one of the following is the correct sequence?

Option
a) R - S - P - Q
b) Q - P - S - R
c) R - P - S - Q
d) Q - S - P - R

Asked In IES EC Chandni Maurya (11 years ago)

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