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ESE Technical Revision Quiz 30

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Question 1

Match List-I (Modes) with List-II (Characteristic) and select the correct answer using the code given below the lists:
List-I
A). Evanescent mode
B). Dominant mode
C). TM₁₀ and TM₀₁
List-II
1). Rectangular waveguide does not support
2). No wave propagation
3). Lowest cut-off frequency

Question 2

In functional generator, which among the following waves are involved in zero crossing?
i. sine wave
ii. Square wave
iii. Triangular wave
iv. Sawtooth wave

Question 3

Consider the following sources:
1) A permanent magnet
2) A charged disc rotating at uniform speed
3) An accelerated charge
4) An electric field which changes linearly with time
Which of the above are the sources of steady magnetic field?

Question 4

Assertion (A): The impedance of a matched load is equal to characteristic impedance of line.
Reason (R): A matched termination absorbs the entire power incident on it.

Question 5

Consider a discrete memoryless source with source alphabet S = {s₀, s₁, s₂} with probabilities

and

The entropy of the source is

Question 6

For second-order system

what is the damping ratio?

Question 7

Symbolic transferring of data/information from register1 to register 2 is done by:

Question 8

The spectral density and autocorrelation function of white noise is

Question 9

A half- wave rectifier is used to supply 50 V DC to a resistive load of 800Ω. The diode has resistance of 25Ω. What is the required ac voltage.

Question 10

Consider the following statements :
Any element is redundant if connected in
1. series with an ideal current source
2. parallel with an ideal current source
3. series with an ideal voltage source
4. parallel with an ideal voltage source
Which of the above statements are correct?

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ESE & GATE EC General

Feb 4ESE & GATE EC