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 6 of 48

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Q51.
The given figure shows a pole zero diagram. The transfer function G(j1) is

a.

0.5 โˆ 0

b.

2.7 โˆ - 31°

c.

2 โˆ 45°

d.

2 โˆ - 67.4°

Discuss
Answer: (a).0.5 โˆ 0
Q52.
For very low frequencies, v0/vi in the given figure equals

a.

1

b.

0

c.

โˆž

d.

0.5

Discuss
Answer: (a).1
Q53.
For the system of the given figure the transfer function is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q54.
The first column of a Routh array is given below. How many roots of the corresponding characteristic equation are in left half s-plane?

a.

2

b.

3

c.

4

d.

5

Discuss
Answer: (b).3
Q55.
For the given figure, time constant RC = t. Then Vo(s)/Vi(s) =

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q56.
In the given figure, C(s) =

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q57.
For G(jฯ‰) =

a.

magnitude is 1 at all frequencies and phase angle varies from 0 to - 180° as ฯ‰ varies from 0 to โˆž

b.

magnitude is T at all frequencies and phase angle 0

c.

magnitude is (1 + ฯ‰²T²)^0.5 and phase angle varies from 0 to 0 - 180° as ฯ‰ varies from 0 to โˆž

d.

none of the above

Discuss
Answer: (a).magnitude is 1 at all frequencies and phase angle varies from 0 to - 180° as ฯ‰ varies from 0 to โˆž
Q58.
For a quadratic factor in transfer function the phase angle is not a function of damping factor.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Q59.
The current rating of dc tachogenerator is usually

a.

small

b.

high

c.

medium

d.

either (b) or (c)

Discuss
Answer: (a).small
Q60.
In a second order system, the time constant t of exponential envelopes depends

a.

only on damping factor

b.

only on natural frequency

c.

both on damping factor and natural frequency

d.

neither on damping factor nor on natural frequency

Discuss
Answer: (c).both on damping factor and natural frequency
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