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 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
Q312.
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
Q313.
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
Q314.
The current rating of dc tachogenerator is usually

a.

small

b.

high

c.

medium

d.

either (b) or (c)

Discuss
Answer: (a).small
Q315.
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
Q316.
If feedback factor is ฮฒ the overall gain of a closed loop system is approximately equal to

a.

1/Avฮฒ

b.

1/ฮฒ

c.

ฮฒ

d.

โˆšฮฒ

Discuss
Answer: (b).1/ฮฒ
Q317.
In control systems the magnitude of error voltage

a.

is very small

b.

is very large

c.

neither small nor large

d.

may be any value from 0 to 50 V

Discuss
Answer: (a).is very small
Q318.
The slope of log-magnitude asymptote changes by - 40 dB/ decade at a frequency ฯ‰โ‚. This means that

a.

a double pole is present

b.

a pair of complex conjugate poles is present

c.

either a double pole or a pair of complex conjugate poles is present

d.

a pole or zero at origin is present

Discuss
Answer: (c).either a double pole or a pair of complex conjugate poles is present
Q319.
For a factor 1/(jฯ‰)² in the transfer function, the log magnitude plot

a.

is a straight line with slope 0 dB/decade

b.

is a straight line with slope 20 dB/decade

c.

is a straight line with slope - 20 dB/decade

d.

is a straight line with slope - 40 dB/decade

Discuss
Answer: (d).is a straight line with slope - 40 dB/decade
Q320.
The frequency at which magnitude of closed loop frequency response is 3 dB below its zero frequency value is called critical frequency.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
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