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 10 of 48

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Q91.
The following transfer function can be for

a.

lead compensator

b.

lag compensator

c.

either (a) or (b)

d.

neither (a) nor (b)

Discuss
Answer: (a).lead compensator
Q92.
In response to a unit step input the controller output in given figure is for

a.

proportional controller

b.

proportional plus integral controller

c.

integral controller

d.

none of the above

Discuss
Answer: (b).proportional plus integral controller
Q93.
Given figure shows the magnitude plot for a system. The steady state error for unit step input is

a.

1/101

b.

1/100

c.

1/41

d.

1/40

Discuss
Answer: (c).1/41
Q94.
For very low frequencies, log magnitude for the given figure is

a.

0 dB

b.

-3 dB

c.

3 dB

d.

10 dB

Discuss
Answer: (c).3 dB
Q95.
In the given figure, P = Pm sin ωt. Then X(s) =

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q96.
The given figure shows three Nyquist plots of G(s) H(s) = e^(-sT)/[s(s + 1)] for different values of T. The curves 1, 2, 3 can be

a.

for T = 0, 0.5 and 1 respectively

b.

for T = 1, 0.5 and 0 respectively

c.

for T = 0.5, 1 and 0 respectively

d.

for T = 0, 1 and 0.5 respectively

Discuss
Answer: (a).for T = 0, 0.5 and 1 respectively
Q97.
The system in the given figure

a.

will be unstable due to the presence of positive feedback in the inner loop

b.

may be stabilized by the negative feedback outer loop

c.

can never be stable

d.

will always be stable

Discuss
Answer: (b).may be stabilized by the negative feedback outer loop
Q98.
A phase lead network with Gc(s) = (s+1/T) / (s+1/aT) where a < 1, gives maximum phase lead at a frequency equal to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q99.
For the log magnitude Bode plot of the given figure, the transfer function is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q100.
The system in the given figure is

a.

type 0 system

b.

type 1 system

c.

type 2 system

d.

type 3 system

Discuss
Answer: (d).type 3 system
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