Control Systems Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Control Systems ”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Control Systems comprehensively.

1.
A good control system has all the following features except_____________?

Good stability

Slow response

Good accuracy

Sufficient power handling capacity

2.
The initial response when tne output is not equal to input is called_____________?

Transient response

Error response

Dynamic response

Either of the above

3.
has tendency to oscillate______________?

Open loop system

Closed loop system

Both A. and B.

Neither A. nor B.

4.
Which of the following statements is not necessarily correct for open control system ?

Input command is the sole factor responsible for providing the control action

Presence of non-linearities causes malfunctioning

Less expensive

Generally free from problems of non-linearities

5.
In an open loop control system____________?

Output is independent of control input

Output is dependent on control input

Only system parameters have effect on the control output

None of the above

6.
Which of the following is an open loop control system ?

Field controlled D.C. motor

Ward leonard control

Metadyne

Stroboscope

7.
A control system in which the control action is somehow dependent on the output is known as____________?

Closed loop system

Semiclosed loop system

Open system

None of the above

8.
In open loop system_____________?

The control action depends on the size of the system

The control action depends on system variables

The control action depends on the input signal

The control action is independent of the output

9.
A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?

Clutch

Eyes

Needle of the speedometer

Steering wheel

10.
A control system working under unknown random actions is called______________?

Computer control system

Digital data system

Stochastic control system

Adaptive control system

11.
Any externally introduced signal affecting the controlled output is called a______________?

Feedback

Stimulus

Signal

Gain control

12.
____________is a part of the human temperature control system?

Digestive system

Perspiration system

Ear

Leg movement

13.
In closed loop control system, with positive value of feedback gain the overall gain of the system will______________?

Decrease

Increase

Be unaffected

Any of the above

14.
For open control system which of the following statements is incorrect ?

Less expensive

Recalibration is not required for maintaining the required quality of the output

Construction is simple and maintenance easy

Errors are caused by disturbances

15.
An automatic toaster is a ___________ loop control system?

Open

Closed

Partially closed

Any of the above

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