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ESE-2018 Electrical Engineering Quiz 4

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Question 1

What is the number of root-locus segments which do not terminate on zeros?

Question 2

The open loop transfer function of a unity feedback control system is

Which is the value of K for its stable operation?

Question 3

Consider the following statements for a Pl controller for a control system.
1) It is equivalent to adding a zero at origin.
2) It reduces overshoot.
3) It improves order of the system by 1.
4) It improves steady-state error of the system.
Which of the statements given above are correct?

Question 4

For the system given below, the feedback does not reduce the closed loop sensitivity due to variation of which one of the following.

Question 5

Consider the following statements with respect to feedback control system.
1) Accuracy cannot be obtained by adjusting loop gain.
2) Feedback decreases overall gain.
3) Introduction of noise due to sensor reduces overall accuracy.
4) Introduction of feedback may lead to the possibility of instability of closed loop system.
Which of the statements given above are correct?

Question 6

Which one of the following is a disadvantage of proportional controller?

Question 7

A composite R-C network yielded the following transfer function when calculated from its components:

This network can be used as which one of the following?

Question 8

For which one of the following, given physical realization corresponds to PD controller?

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ESE & GATE EE Control Systems

Feb 11ESE & GATE EE