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ESE EC 2021 Technical Quiz 12

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Question 1

The unity feedback system with OLTF given by

. The steady state error for unit ramp input is?

Question 2

In a digital voltmeter, input signal is integrated for duration of 300 clock cycles. To eliminate the effect of 60 Hz noise present in the signal, what is the maximum clock frequency?

Question 3

Which of the following is the least desired property of the magnetic materials for electrical engineering applications?

Question 4

The contents of the accumulator after the execution of the following instructions in 8085 is

MVI A, 95H

ANI F0H

RLC

Question 5

Consider the following statements:
When compared with a bridge rectifier, a centre-tapped full wave rectifier.
1) Has larger transformer utilization factor
2) Can be used for floating output terminate i.e. no input terminal is grounded.
3) Needs two diodes instead of four.
4) Needs diodes of a lower PIV rating.
Which of these statements is/are correct?

Question 6

Statement-1: DC series motors are suitable for cranes.

Statement-2: DC series motors produces low starting torque.

Question 7

In a relaxed accumulator, find the output z(t) of a signal, when a signal y(t)=t*u(t)is passed through an accumulator?

Question 8

For a random variable x having the probability density function (PDF) as shown in the below figure, what are the values of the mean and the variance, respectively?

Question 9

The electrical conductivity of pure semiconductor is:

Question 10

Match List-1 with List-2 and select the correct answer using the options given.

List-1

A. Physical layer

B. Network layer

C. Data link layer

List-2

1) Collision Detection

2) Bit encoding

3) Host identification

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ESE & GATE EC General

Mar 20ESE & GATE EC