Control System Interview Questions and Answers PDF

MCQ 1: Which of the following locus allows the closed loop magnitude frequency response to be determined from open loop magnitude frequency response?

1. N circles
2. M circles
3. C circles
4. L circles

MCQ 2: Addition of transfer function in forward path or feedback path for the purpose of improving the transient of steady state performance of control system is called

1. actuation
2. attenuation
3. compensation
4. amplification

MCQ 3: A subsystem inserted into the forward or feedback path for the compensation purpose is called

1. actuator
2. attenuator
3. compensator
4. modulator

MCQ 4: Locus of constant, closed loop magnitude frequency response for unity feedback systems is called constant

1. N circles
2. M circles
3. L circles
4. C circles

MCQ 5: For generic feedback system with G(s) in the forward path and H(s) in the positive feedback path , the closed loop transfer T(s) is

1. H(s)/(1+G(s)H(s))
2. G(s)/(1-G(s)H(s))
3. G(s)/(1+G(s)H(s))
4. G(s)/H(s)