Consider the points s1 =-3+4j and s2 = -3-2j in the s-plane. Then, for a system with the open loop transfer function G(s)H(s) =K/(s+1)4.

Both s1 and s2 are not on the root locus

S1 is on the root locus but s2 is not

S2 is on the root locus but s1 is not

Both s1 and s2 are not on the root locus

Neither s1 nor s2 is on the root locus

Explore topic-wise MCQs in Control Systems.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Control Systems knowledge and support exam preparation. Choose a topic below to get started.

1.	The characteristic equation of a feedback control system is given by s³+5s²+(K+6)s+K=0. In the root loci diagram, the asymptotes of the root loci for large K meet at a point in the s plane whose coordinates are:
A.	(2,0)
B.	(-1,0)
C.	(-2,0)
D.	(-3,0)
Answer» D. (-3,0)

Discussion

2.	Consider the points s1 =-3+4j and s2 = -3-2j in the s-plane. Then, for a system with the open loop transfer function G(s)H(s) =K/(s+1)⁴.
A.	S1 is on the root locus but s2 is not
B.	S2 is on the root locus but s1 is not
C.	Both s1 and s2 are not on the root locus
D.	Neither s1 nor s2 is on the root locus
Answer» C. Both s1 and s2 are not on the root locus

Discussion

Explore topic-wise MCQs in Control Systems.

The characteristic equation of a feedback control system is given by s3+5s2+(K+6)s+K=0. In the root loci diagram, the asymptotes of the root loci for large K meet at a point in the s plane whose coordinates are:

Consider the points s1 =-3+4j and s2 = -3-2j in the s-plane. Then, for a system with the open loop transfer function G(s)H(s) =K/(s+1)4.

The characteristic equation of a feedback control system is given by s³+5s²+(K+6)s+K=0. In the root loci diagram, the asymptotes of the root loci for large K meet at a point in the s plane whose coordinates are:

Consider the points s1 =-3+4j and s2 = -3-2j in the s-plane. Then, for a system with the open loop transfer function G(s)H(s) =K/(s+1)⁴.