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 44 of 48

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Q431.
If G(s)H(s) = K/s(s+1)(s²+4s+20), the number of branches of root locus are

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (d).4
Q432.
N circles for ฮฑ = ฮฑ1, and ฮฑ = ฮฑ1 ± 180° n (where n = 1, 2, 3, ....) are the same.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q433.
If G(s)H(s) = K (Tโ‚s + 1)/[s² (Tโ‚‚s + 1)] the system stability depended an relative magnitudes of Tโ‚ and Tโ‚‚.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q434.
In a simple on-off controller with differential gap, the magnitude of differential gap determines

a.

the level of accuracy

b.

the life of controller

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) and (b)
Q435.
Consider the following statements about root locus

1. The root locus is symmetrical about real axis.
2. If a root locus branch moves along the real axis from an open loop pole to zero or to infinity, this root locus branch is called real root branch.
3. The breakaway points of the root locus are the solutions of dK/dS = 0

Which statements out of above are correct?

a.

1 and 2 only

b.

1 and 3 only

c.

1, 2 and 3

d.

2 and 3 only

Discuss
Answer: (c).1, 2 and 3
Q436.
In Bode plots the frequency at which two asymptotes meet is called corner frequency.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q437.
In Bode plots, frequency is plotted on log scale.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q438.
For a type 1 system and unit step input, the steady state error is

a.

0

b.

1

c.

1/(1+Kp)

d.

โˆž

Discuss
Answer: (a).0
Q439.
Nichol's chart is symmetric about - 180° axis.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q440.
If the Nyquist plot encircles the (-1 + j0) point clockwise once or more number of times, the system is unstable.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
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