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 23 of 48

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Q221.
In a synchro transmitter

a.

input is angular position of rotor shaft and output is stator voltages

b.

input is stator voltages and output is angular position of shaft input is rotor voltage and output is angular position of rotor shaft

c.

input is rotor voltage and output is angular position of rotor shaft

d.

input is angular position of rotor shaft and output is rotor voltage

Discuss
Answer: (a).input is angular position of rotor shaft and output is stator voltages
Q222.
The polar plot of G(jฯ‰) = 1/jฯ‰ is

a.

positive imaginary axis

b.

positive real axis

c.

negative imaginary axis

d.

negative real axis

Discuss
Answer: (c).negative imaginary axis
Q223.
For an unstable system the gain margin is indicative of how much the gain should be decreased to make the system stable.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q224.
For a stable system having two or more gain crossover frequencies the phase margin is measured

a.

at lowest gain crossover frequency

b.

at highest gain crossover frequency

c.

at the gain crossover frequencies

d.

none of the above

Discuss
Answer: (b).at highest gain crossover frequency
Q225.
In a second order system, peak overshoot is independent of

a.

damping factor

b.

natural frequency

c.

both damping factor and natural frequency

d.

neither damping factor nor natural frequency

Discuss
Answer: (b).natural frequency
Q226.
Nyquist plot provides information about absolute stability as well as relative stability.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q227.
Power handling capacity of wire wound potentiometer used in control systems is about

a.

0.1 W

b.

5 W

c.

25 W

d.

100 W

Discuss
Answer: (b).5 W
Q228.
For stable network the real parts of poles and zeros of driving point functions must be

a.

negative

b.

negative or zero

c.

zero

d.

positive

Discuss
Answer: (b).negative or zero
Q229.
A compensating network has Gc(s) = (1+ฮฑTs)/(1+Ts) . If it is a phase lag circuit the value of a should be

a.

0

b.

between 0 and 1

c.

1

d.

more than 1

Discuss
Answer: (b).between 0 and 1
Q230.
If Z is the number of zeros of 1 + G(s) H(s) in the right half s plane. N is the number of clockwise encircle elements of (-1 + jo) point. P is the number of poles of G(s) H(s) in right half s plane. The Nyquist stability criterion can be expressed as

a.

Z = N + P

b.

Z = P/N

c.

Z = N - P

d.

Z = PN

Discuss
Answer: (a).Z = N + P
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