Automatic Control Systems MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Automatic Control Systems, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Automatic Control Systems MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Automatic Control Systems mcq questions that explore various aspects of Automatic Control Systems problems. Each MCQ is crafted to challenge your understanding of Automatic Control Systems principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Automatic Control Systems MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Automatic Control Systems. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Automatic Control Systems knowledge to the test? Let's get started with our carefully curated MCQs!

Automatic Control Systems MCQs | Page 24 of 48

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Q231.
Assertion (A): When the forward gain of a system is increased, the transient response becomes oscillatory.

Reason (R): Increasing the forward gain reduces steady state error.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct but R is wrong

d.

R is correct but A is wrong

Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q232.
Assertion (A): A. For a unity feedback system, with G(s) = K/s(s+2) , the settling time of step response is constant for all values of K β‰₯ 1

Reason (R): The real part of the roots for all values of K β‰₯ 1 are negative.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct but R is wrong

d.

R is correct but A is wrong

Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q233.
Assertion (A): F(s) is valid throughout s plane except at poles of F(s).

Reason (R): £[f1(t) + f2(t)] = £[f1(t)] + £[f2(t)]

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct but R is wrong

d.

R is correct but A is wrong

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q234.
At low frequencies the factor e^(-jωT) and 1/(1+jωT) behave simple.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q235.
The overall transfer function for a unity feedback system is 4/(s² + 4s + 4). Which of the following statements about this system are correct?

1. Position error constant Kp is 4
2. System is type 1
3. Velocity error constant is finite

Select the answer as per following code:

a.

1, 2, 3

b.

1, 2

c.

2, 3

d.

1, 3

Discuss
Answer: (d).1, 3
Q236.
Bandwidth is proportional to speed of response.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q237.
The complicated shapes in the polar plots are only due to time constants in the numerator of transfer functions.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q238.
For a quadratic factor in denominator of transfer function the phase angle at corner frequency (in Bode phase angle plot)

a.

is -90°

b.

is +90°

c.

depends on the damping factor

d.

none of the above

Discuss
Answer: (a).is -90°
Q239.
In terms of ΞΎ and Ο‰n the settling time (5% criterion) of a second order system for a step input, is equal to

a.

1/ΞΎΟ‰n

b.

2/ΞΎΟ‰n

c.

3/ΞΎΟ‰n

d.

4/ΞΎΟ‰n

Discuss
Answer: (c).3/ΞΎΟ‰n
Q240.
The poles of an RC function

a.

are simple and lie on jω axis

b.

are simple and lie on negative real axis

c.

may be complex conjugate

d.

may be anywhere in s plane

Discuss
Answer: (a).are simple and lie on jω axis
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