FAQ: Controls Engineer Technical Interview Questions p. 13

MCQ: A subsystem placed in a feedback path for the purpose of improving the performance of a closed loop system is called

1. feedforward compensator
2. feedback compensator
3. feed reverse compensator
4. feed controlled compensator

MCQ: The product of the gains of all the branches in the loop is called

1. loop
2. path gain
3. loop gain
4. forward path

MCQ: A point on real axis of s-plane where root locus leaves the real axis and enters the complex plane is called

1. breakaway point
2. break-in point
3. Q-point
4. input point

MCQ: A method of feedback compensation that adds a compensating zero to the open loop transfer function for the purpose of improving the transient response of the closed loop system is called

1. minor loop compensation
2. no loop compensation
3. open loop compensation
4. major loop compensation

MCQ: In PID controller operation, difference between process variable and set variable is called

1. process variable
2. set variable
3. error
4. manipulated variable