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 32 of 48

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Q311.
For low frequencies such that ฯ‰ << 1/T , the log magnitude of factor 1/(1+jฯ‰T) is 0 dB.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q312.
Assertion (A): The closeness of G(jฯ‰) locus to (- 1 + j0) point can be used as a measured of margin of stability.

Reason (R): When the G(jฯ‰) locus comes close to encircling (- 1 + j0) point the system becomes oscillatory.

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
Q313.
The capacitance of a gas pressure vessel is defined as

a.

(change in gas stored) / (change in gas pressure)

b.

(change in gas pressure) / (change in gas stored)

c.

(change in gas stored) x (change in gas pressure)

d.

none of the above

Discuss
Answer: (a).(change in gas stored) / (change in gas pressure)
Q314.
Assertion (A): Integral control action is sometimes called reset control.

Reason (R): Reset rate is expressed as number of repeats per unit time.

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
Q315.
In some on-off controllers a differential gap is provided

a.

to make the manufacture process easier

b.

to prevent too often frequent operation of controller

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (b).to prevent too often frequent operation of controller
Q316.
If G(s) = 1/(s³+s²+1), there are

a.

two poles of G(s) in the left half plane

b.

two poles of G(s) in the right half plane

c.

three poles of G(s) in the right half plane

d.

four poles of G(s) in the right half plane

Discuss
Answer: (b).two poles of G(s) in the right half plane
Q317.
In Bode analysis the correction at corner frequency is 3 dB.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q318.
In a proportional plus integral control action

a.

proportional gain Kp is adjustable but integral time Ti is constant

b.

proportional gain Kp is adjustable but integral time Ti is adjustable

c.

both proportional gain Kp and integral time Ti are adjustable

d.

both proportional gain Kp and integral time Ti are constant

Discuss
Answer: (c).both proportional gain Kp and integral time Ti are adjustable
Q319.
Which dc servomotor has minimum inertia?

a.

Slotted armature construction

b.

Surface wound armature

c.

Surface wound with stationary rotor

d.

Either (a) or (b)

Discuss
Answer: (c).Surface wound with stationary rotor
Q320.
Gas flow resistance is defined as

a.

(change in gas pressure difference) / (change in gas flow rate)

b.

(change in gas flow rate) / (change in gas pressure difference)

c.

(change in gas pressure difference) x (change in gas flow rate)

d.

none of the above

Discuss
Answer: (a).(change in gas pressure difference) / (change in gas flow rate)
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