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 4 of 48

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Q31.
For G(jω) =

a.

magnitude is 1 at all frequencies and phase angle varies from 0 to - 180° as ω varies from 0 to ∞

b.

magnitude is T at all frequencies and phase angle 0

c.

magnitude is (1 + ω²T²)^0.5 and phase angle varies from 0 to 0 - 180° as ω varies from 0 to ∞

d.

none of the above

Discuss
Answer: (a).magnitude is 1 at all frequencies and phase angle varies from 0 to - 180° as ω varies from 0 to ∞
Q32.
The transient response of a second order system is given by following equation. For 5% criterion the settling time is

a.

0.25 sec

b.

0.75 sec

c.

1.25 sec

d.

4 sec

Discuss
Answer: (b).0.75 sec
Q33.
For the system in the given figure, the transfer function C(s)/R(s) is

a.

G1 + G2 + G3

b.

G1 G2 + G3

c.

G1 G2 G3

d.

(G1 + G2) G3

Discuss
Answer: (b).G1 G2 + G3
Q34.
For the system in the given figure, the characteristic equation is

a.

s² + s(3 + 6a) + 6 = 0

b.

s² + s(3 + 12a) + 12 = 0

c.

s² + 3s = 0

d.

s² + 6s = 0

Discuss
Answer: (a).s² + s(3 + 6a) + 6 = 0
Q35.
In the given figure the transfer function C(s)/N(s) =

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q36.
The following transfer function can be for

a.

lead compensator

b.

lag compensator

c.

lead-lag compensator

d.

either (a) or (b)

Discuss
Answer: (c).lead-lag compensator
Q37.
The system of the given figure

a.

has two poles and one zero in left half plane

b.

has two poles and one zero in right half plane

c.

has two poles in left half plane and zero in right half plane

d.

none of the above

Discuss
Answer: (c).has two poles in left half plane and zero in right half plane
Q38.
For the given figure C(s)/R(s)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q39.
If phase angle of open loop transfer function becomes - 180° at frequency ω1, then gain margin is equal to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q40.
A system with following transfer function may be approximated by the system

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
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