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 35 of 48

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Q341.
The constant magnitude of G(s) plane are

a.

a family of straight horizontal lines

b.

a family of straight inclined lines with positive slope

c.

a family of straight inclined lines with negative slope

d.

a family of circles

Discuss
Answer: (d).a family of circles
Q342.
Which of the following is correct?

a.

Speed torque characteristics of permanent magnet dc servomotor is more flat than that of wound field dc servomotor

b.

Speed torque characteristics of wound field dc servo- motor is more flat than that of permanent magnet dc servo motor

c.

Speed torque characteristics of wound field and permanent magnet dc servomotor are equally flat

d.

None of the above

Discuss
Answer: (a).Speed torque characteristics of permanent magnet dc servomotor is more flat than that of wound field dc servomotor
Q343.
Assertion (A): In an automobile the amount of fuel admitted to the engine is adjusted as per the difference between desired and actual speed.

Reason (R): The control signal is the amount of fuel to be admitted to the engine.

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
Q344.
A system is highly oscillatory if

a.

gain margin is high

b.

gain margin is close to 1

c.

gain margin is close to 1 or phase margin is zero

d.

gain margin is high and phase margin is 180°

Discuss
Answer: (c).gain margin is close to 1 or phase margin is zero
Q345.
For 0 < M < 1, the centres of M circle lie to the right of origin.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q346.
Assertion (A): In root locus the breakaway and break in points either lie on real axis or occur in complex conjugate pairs.

Reason (R): All root locus asymptotes intersect on real axis.

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
Q347.
For the given figure C(s)/R(s)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q348.
If phase angle of open loop transfer function becomes - 180° at frequency ฯ‰1, then gain margin is equal to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q349.
A system with following transfer function may be approximated by the system

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q350.
For the second order system having following differential equation (When ฮธ0 and ฮธi are output and input), the natural frequency is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
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