Explore topic-wise MCQs in Control Systems.

This section includes 12 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.

Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output?

A. Input signal
B. Output signal
C. Error signal
D. Feedback signal
Answer» B. Output signal
2.

Which among the following is not an advantage of an open loop system?

A. Simplicity in construction & design
B. Easy maintenance
C. Rare problems of stability
D. Requirements of system re-calibration from time to time
Answer» E.
3.

WHICH_AMONG_THE_FOLLOWING_IS_NOT_AN_ADVANTAGE_OF_AN_OPEN_LOOP_SYSTEM??$

A. Simplicity in construction & design
B. Easy maintenance
C. Rare problems of stability
D. Requirements of system re-calibration from time to time
Answer» E.
4.

Which_terminology_deals_with_the_excitation_or_stimulus_applied_to_the_system_from_an_external_source_for_the_generation_of_an_output?$

A. Input signal
B. Output signal
C. Error signal
D. Feedback signal
Answer» B. Output signal
5.

Which notation represents the feedback path in closed loop system representation?

A. b(t)
B. c(t)
C. e(t)
D. r(t)
Answer» D. r(t)
6.

Which among the following represents an illustration of closed loop system?

A. Automatic washing machine
B. Automatic electric iron
C. Bread toaster
D. Electric hair drier
Answer» B. Automatic electric iron
7.

Which among the following controls the speed of D.C. motor?

A. Galvanometer
B. Gauss meter
C. Potentiometer
D. Tachometer
Answer» E.
8.

Into which energy signal does the position sensor convert the measured position of servomotor in servomechanisms?

A. Mechanical
B. Electrical
C. Thermal
D. Light
Answer» B. Electrical
9.

What is the value of steady state error in closed loop control systems?

A. Zero
B. Unity
C. Infinity
D. Unpredictable
Answer» B. Unity
10.

A good control system should be sensitive to __________

A. Internal disturbances
B. Environmental parameters
C. Parametric variations
D. Input signals (except noise)
Answer» D. Input signals (except noise)
11.

Which system exhibits the initiation of corrective action only after the output gets affected?

A. Feed forward
B. Feedback
C. Both a and b
D. None of the mentioned
Answer» C. Both a and b
12.

What should be the nature of bandwidth for a good control system?

A. Large
B. Small
C. Medium
D. All of the mentioned
Answer» B. Small