Explore topic-wise MCQs in Control Systems.

This section includes 8 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.

In servo-system, the device used for derivative feedback is known as:

A. tSynchro
B. tServomotor
C. tPotentiometer
D. tTacho generator
Answer» E.
Discussion
2.

The impulse response of a linear LTI system is given as g (t) = e(-t)The transfer function of the system is equal to:

A. t1/s
B. t1/s(s+1)
C. t1/(s+1)
D. ts/(s+1)
Answer» D. ts/(s+1)
Discussion
3.

The closed loop transfer function of a unity negative feedback system is 100/(s2+8s+100). Its open loop transfer function is:

A. t100/s+8
B. t1/s<sup>2</sup>+8s
C. t100/s<sup>2</sup>-8s
D. t100/s<sup>2</sup>+8s
Answer» E.
Discussion
4.

The tacho meter has sensitivity of 5V/1000rpm. The gain constant of the tacho meter is:

A. t0.48V/rad/sec
B. t0.048V/rad/sec
C. t4.8V/rad/sec
D. t48V/rad/sec
Answer» C. t4.8V/rad/sec
Discussion
5.

Assertion (A): Many of the linear control system transfer function do not have poles or zeroes in the right half s-plane.
Reason (R): These are called minimum phase transfer function.

A. tBoth A and R are true and R is correct explanation of A
B. tBoth A and R are true and R is not correct Explanation of A
C. tA is True and R is false
D. tA is False and R is true
Answer» B. tBoth A and R are true and R is not correct Explanation of A
Discussion
6.

An electric motor is developing 10KW at a speed of 900rpm. The torque available at the shaft is:

A. t106 N-m
B. t66 N-m
C. t1600 N-m
D. t90 N-m
Answer» B. t66 N-m
Discussion
7.

Consider the function F (s)= 5/s(s2+3s+2), the initial value of f(t) is:

A. t5
B. t5/2
C. t5/3
D. t0
Answer» E.
Discussion
8.

Which of the following can be used as a tacho generator in control systems?

A. tMicrosyn
B. tDC servomotor
C. tAC servomotor
D. tMagnetic Amplifier
Answer» D. tMagnetic Amplifier
Discussion