Explore topic-wise MCQs in Control Systems Questions and Answers.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Control Systems Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

When the number of poles is equal to the number of zeroes, how many branches of root locus tends towards infinity?

A. a)1
B. b)2
C. c)0
D. d)Equal to number of zeroes
Answer» D. d)Equal to number of zeroes
Discussion
2.

If root loci plots of a particular control system do not intersect the imaginary axis at any point, then the gain margin of the system will be:

A. a)0
B. b)0.707
C. c)1
D. d)Infinite
Answer» E.
Discussion
3.

The addition of open loop zero pulls the root loci towards:

A. a)The left and therefore system becomes more stable
B. b)The right and therefore system becomes unstable
C. c)Imaginary axis and therefore system becomes marginally stable
D. d)The left and therefore system becomes unstable
Answer» B. b)The right and therefore system becomes unstable
Discussion
4.

Consider the loop transfer function K(s+6)/(s+3)(s+5) In the root locus diagram the centroid will be located at:

A. a)-4
B. b)-1
C. c)-2
D. d)-3
Answer» D. d)-3
Discussion