Explore topic-wise MCQs in Control Systems.

This section includes 4 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.

The lagrangian is defined as:

A. tSum of kinetic energy and hydraulic energy
B. tMechanical energy
C. tDifference of kinetic and potential energy
D. tNone of these
Answer» D. tNone of these
Discussion
2.

In case of DC servomotor, the back emf is equivalent to an electric friction which tends to:

A. tSlowly decrease the stability of the system
B. tImprove stability of the system
C. tVery rapidly decrease the stability of the system
D. tHave no effect of stability
Answer» C. tVery rapidly decrease the stability of the system
Discussion
3.

Assertion (A): DC servomotors are more commonly used in armature controlled mode than field controlled mode.
Reason (R): Armature controlled Dc motors have higher starting torque than fiels controlled motors.

A. tBoth A and R are true and R is the correct explanation of A
B. tBoth A and R are true but R is not correct explanation of A
C. tA is true but R is false
D. tA is false but R is true
Answer» B. tBoth A and R are true but R is not correct explanation of A
Discussion
4.

Assertion (A): Servomotors have heavier rotors and lower R/X ratio as compared to ordinary motors of similar ratings.
Reason (R): Servomotor should have smaller electrical and mechanical time constants for faster response.

A. tBoth A and R are true and R is the correct explanation of A
B. tBoth A and R are true but R is not correct explanation of A
C. tA is true but R is false
D. tA is false but R is true
Answer» E.
Discussion