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 16 of 48

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Q151.
The radius and centre of M circles are given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q152.
For the system in the given figure the root locus

a.

is on real axis between points s = -1 and s = -3.6

b.

is on real axis between points s = 0 and s = -1

c.

is on real axis between points s = -3.6 and s = โˆž

d.

is on real axis between points s = 0 and s = -3.6

Discuss
Answer: (a).is on real axis between points s = -1 and s = -3.6
Q153.
A system has two poles as shown in the given figure. The zeros are at infinity. If input is unit step, the steady state output is

a.

1/4

b.

1/2

c.

1/โˆš2

d.

1

Discuss
Answer: (d).1
Q154.
A unity feedback system has the following open loop frequency response. The gain margin and phase margin are

a.

0 dB, -17°

b.

3.86 dB, -180°

c.

0 dB, 10°

d.

3.86 dB, 10°

Discuss
Answer: (d).3.86 dB, 10°
Q155.
For the system in the given figure, the gain margin is

a.

0

b.

low

c.

+ โˆž

d.

none of the above

Discuss
Answer: (c).+ โˆž
Q156.
In the signal flow graph in the given figure the number of forward paths and pairs of non-touching loops are respectively

a.

3 and 1

b.

3 and 2

c.

4 and 2

d.

2 and 4

Discuss
Answer: (a).3 and 1
Q157.
In an armature controlled dc motor let J be equivalent moment of inertia of motor and load, f0 be equivalent viscous friction coefficient of motor and load and ฮธ be angular displacement of motor shaft. Then torque equation is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q158.
Consider the following statement:

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
Q159.
The system of the given figure

a.

is unstable for all values of K

b.

is stable for all values of K

c.

can be stable for some values of K

d.

data is insufficient to determine stability

Discuss
Answer: (a).is unstable for all values of K
Q160.
For a feedback system given below, the velocity error constant Kv is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
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