The open loop control transfer function of a unity feedback system is given by :G(s) =K/(s+2)(s+4)(s^2+6s+25)

nWhich is the value of K which causes sustained oscillations in the closed loop system?

Assertion (A): The closed loop stability can be determined from the poles of an open loop system and the polar plot of the frequency response.Reason (R): Unstable system has right half poles.

tBoth A and R are true and R is correct explanation of A

tBoth A and R are true and R is not correct Explanation of A

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 open loop control transfer function of a unity feedback system is given by : G(s) =K/(s+2)(s+4)(s^2+6s+25)
A.	nWhich is the value of K which causes sustained oscillations in the closed loop system?
B.	t590
C.	t790
D.	t990
E.	t1190
Answer» B. t590

Discussion

2.	Assertion (A): The closed loop stability can be determined from the poles of an open loop system and the polar plot of the frequency response. Reason (R): Unstable system has right half poles.
A.	tBoth A and R are true and R is correct explanation of A
B.	tBoth A and R are true and R is not correct Explanation of A
C.	tA is True and R is false
D.	tA is False and R is true
Answer» C. tA is True and R is false

Discussion