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 33 of 48

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Q321.
Which of the following features is not associated with Nichols chart?

a.

(0 dB, -180°) point on Nichols chart represent critical Point (-1, 0)

b.

It is symmetric about -180°

c.

M loci are centred about (0 dB, -180°) point

d.

The frequency at intersection of G(jฯ‰) locus and M = +3 dB locus gives bandwidth of closed loop system

Discuss
Answer: (d).The frequency at intersection of G(jฯ‰) locus and M = +3 dB locus gives bandwidth of closed loop system
Q322.
Which of the following can be used as a rotating amplifier in a control system?

1. Amplidyne
2. Separately excited dc generator
3. Synchro
4. Self excited dc generator

Select the answer from the following codes:

a.

3 and 4

b.

1 and 2

c.

1, 2 and 3

d.

all

Discuss
Answer: (b).1 and 2
Q323.
A lead compensator

a.

speeds up the transient response

b.

increases the stability margin

c.

increases the stability margin and speeds up the transient-response.

d.

none of the above.

Discuss
Answer: (c).increases the stability margin and speeds up the transient-response.
Q324.
For type 1 system the velocity lag error is

a.

inversely proportional to bandwidth of system

b.

directly proportional to gain constant

c.

inversely proportional to gain constant

d.

independent of gain constant

Discuss
Answer: (c).inversely proportional to gain constant
Q325.
For G(jฯ‰) = 1 / (1+jฯ‰T) as ฯ‰ approaches infinity, the magnitude approaches zero and phase angle approaches - 90°.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q326.
Nyquist stability criterion uses open loop frequency response characteristics.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q327.
For any test point s on the real axis, the sum of angular contributions of the complex conjugate poles is

a.

90°

b.

180°

c.

270°

d.

360°

Discuss
Answer: (d).360°
Q328.
Integral control action

a.

removes offset

b.

may lead to oscillatory response

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) and (b)
Q329.
The sensor generally used in incremental optical encoder is

a.

LED

b.

LCD

c.

photodiode

d.

either (a) or (b)

Discuss
Answer: (c).photodiode
Q330.
Robotic manipulator arms mostly use

a.

hydraulic actuator

b.

pneumatic actuator

c.

electric motor actuator

d.

none of the above

Discuss
Answer: (c).electric motor actuator
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