Test: Control System- 1

# Test: Control System- 1

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## 25 Questions MCQ Test Basic Electronics Engineering for SSC JE (Technical) | Test: Control System- 1

Test: Control System- 1 for Electrical Engineering (EE) 2022 is part of Basic Electronics Engineering for SSC JE (Technical) preparation. The Test: Control System- 1 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Control System- 1 MCQs are made for Electrical Engineering (EE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Control System- 1 below.
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Test: Control System- 1 - Question 1

### The transform function of a system is the Laplace transform of

Test: Control System- 1 - Question 2

### The transfer function is defined as

Test: Control System- 1 - Question 3

### What is the characteristic of a good control system ?

Test: Control System- 1 - Question 4

The transfer function of a linear system is the

Test: Control System- 1 - Question 5

If the open-loop transfer function is a ratio of a numerator polynomial of degree 'm' and a denominator polynomial of degree 'n' then the integer (n-m) represents the number of

Test: Control System- 1 - Question 6

Despite the presence of negative feedback, control system still have problems of instability  because the

Test: Control System- 1 - Question 7

Consider the following statements in connection with the feedback of control systems:

1. Feedback can improve stability or be harmful to stability if it is not properly applied.

2. Feedback can always improve stability

.3. In many situations the feedback can reduce the effect of noise and disturbance on system performance.

4. In general the sensitivity of the system gain of a feedback system to a parameter variatio depends on, where the parameter is located.

Which of the above statements are correct ?

Test: Control System- 1 - Question 8

Consider the following statements:

1. The effect of feedback is to reduce the system error.

2. Feedback increases the gain of the system in one frequency range but decreases in another.

3. Feedback can cause a system that is originally stable to become unstable.

Which of these statements are correct ?

Test: Control System- 1 - Question 9

Consider the following statements:

Feedback in control system can be used

1. to reduce the sensitivity of the system to parameter variations and disturbances.

2. to change time constant of the system.

3. to increase loop gain of the system

Which of the statement given above are correct?

Test: Control System- 1 - Question 10

With negative feedback in a closed loop control system, the system sensitivity to parameter variations

Test: Control System- 1 - Question 11

In a control system, the use of negative feedback

Test: Control System- 1 - Question 12

The transfer function of a system is The characteristic equation of the system is

Test: Control System- 1 - Question 13

Which one of the following identity is correct one?

Test: Control System- 1 - Question 14

The transfer function from d(s) to y(s) is Test: Control System- 1 - Question 15

For what value of K, are the two block diagrams as shown below equivalent ? Test: Control System- 1 - Question 16

In the signal flow graph of the figure is y/x equals Test: Control System- 1 - Question 17

For the signal flow diagram shown in the given figure, the transmittance between x2 and x1 is Test: Control System- 1 - Question 18

When a human being tries to approach an object, his brain acts as

Test: Control System- 1 - Question 19

Consider the loop transfer function

G(s)H(s) = In the roots locus diagram the controid will be located at

Test: Control System- 1 - Question 20

Consider the following statements:

In root-locus plot, the breakaway points

1. Ned not always be on real axis alone

2. Must lie on the root loci

3. Must lie between 0 and – 1

Which of these statements are correct ?

Test: Control System- 1 - Question 21

For a unity negative feedback control system, the open loop transfer function is The root-locus plot of the system is

Test: Control System- 1 - Question 22

First column elements of the Routh's tabulation are 3, 5 -3/4, 1/2, 2. It means that there

Test: Control System- 1 - Question 23

The response c(t) of a system is described by te differential equation The system response is

Test: Control System- 1 - Question 24

The polar plot of a transfer function passes through the critical point (–1.0). The gain margin is

Test: Control System- 1 - Question 25

If the transfer function of a phase lead compensator is (s+ a)/ (s+b) and that of a lag compensator is (s + p)/(s+q), then Which one of the following sets of condition must be satisfied ?

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