Question

Assertion (A): An on-off controller gives rise to self-sustained oscillation in output.

Reason (R): Location of a pair of poles on the imaginary axis gives to self-sustained oscillation is output.

(a) Both A and R true and R is correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true and R is False

(d) A is False and R is True

I had been asked this question in unit test.

My enquiry is from Performance Indices in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems

Answer 1

The correct option is (a) Both A and R true and R is correct explanation of A

Explanation: An off-off controller is the initial version of the proportional controller and it gives the self-sustained oscillations and location of poles on the imaginary axis gives the self-sustained oscillations.