Explore topic-wise MCQs in Control Systems.

This section includes 13 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.

A plant controlled by a proportional controller. If a time delay element is introduced in the loop its :

A. Phase margin remains the same
B. Phase margin increases
C. Phase margin decreases
D. Gain margin increases
Answer» D. Gain margin increases
Discussion
2.

Electronic Controller :

A. Flexible operation
B. High torque high speed operation
C. Fire and explosion proof operation
D. No leakage
Answer» B. High torque high speed operation
Discussion
3.

Hydraulic controller :

A. Flexible operation
B. High torque high speed operation
C. Fire and explosion proof operation
D. No leakage
Answer» C. Fire and explosion proof operation
Discussion
4.

Pneumatic controller are :

A. Flexible operation
B. High torque high speed operation
C. Fire and explosion proof operation
D. No leakage
Answer» D. No leakage
Discussion
5.

Consider the following statement:A proportional plus derivative controller 1. Has high sensitivity 2. Increases the stability of the system 3. Improves the steady state accuracy Which of these statements are correct?

A. 1,2 and 3
B. 1 and 2
C. 2 and 3
D. 1 and 3View Answer
Answer» C. 2 and 3
Discussion
6.

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
Answer» B. Both A and R are true but R is not correct explanation of A
Discussion
7.

HYDRAULIC_CONTROLLER_:?$

A. Flexible operation
B. High torque high speed operation
C. Fire and explosion proof operation
D. No leakage
Answer» B. High torque high speed operation
Discussion
8.

Electronic_Controller_:$

A. Flexible operation
B. High torque high speed operation
C. Fire and explosion proof operation
D. No leakage
Answer» D. No leakage
Discussion
9.

Pneumatic controller are ?

A. Flexible operation
B. High torque high speed operation
C. Fire and explosion proof operation
D. No leakage
Answer» C. Fire and explosion proof operation
Discussion
10.

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

A. : Location of a pair of poles on the imaginary axis gives to self-sustained oscillation is output.
B. Both A and R true and R is correct explanation of A
C. Both A and R are true but R is not correct explanation of A
D. A is true and R is False
Answer» B. Both A and R true and R is correct explanation of A
Discussion
11.

The industrial controller having the best steady-state accuracy is:

A. A derivative controller
B. An integral controller
C. A rate feedback controller
D. A proportional controller
Answer» B. An integral controller
Discussion
12.

The compensator Gc(s) =5(1+0.3s)/(1+0.1s) would provide a maximum phase shift of:

A. 20°
B. 45°
C. 30°
D. 60°
Answer» D. 60¬¨¬®‚Äö√†√ª
Discussion
13.

If the performance index of a phase lead compensator is (s+a)/ (s+b) and that of a lag compensator is (s+p)/(s+q), then which one of the following sets of conditions must be satisfied?

A. a>b and p<q
B. a>b and p<q
C. a<b and p<q
D. a<b and p>q
Answer» E.
Discussion