# Control System MCQ

The control system is a set of the device which manages and directs the behavior of devices/systems to obtain the desired output.

Given below are the most important Control system MCQ Questions.

## Laplace transform transforms

Laplace transform transforms:

1. Time domain to s domain
2. s domain to time domain
3. One time to other time domain
4. One s to other s domain

Correct answer: 1. Time domain to s domain

## Laplace transformer of e^-at

Laplace transformer of e^-at

1. 1/s-a
2. 1/s
3. 1/a
4. 1/s+a

Correct answer: 4. 1/s+a

## The type of transfer function denotes

The type of transfer function denotes:

1. Number of poles at origin
2. Number of zeros at origin
3. Number of poles at infinity
4. Number of zeros at infinity

Correct answer: 1. Number of poles at origin

## The position control is

The position control is:

1. Process control
2. Fussy system
3. Regulation control
4. Servomechanism

Correct answer: 4. Servomechanism

## The transient response of a system having feedback control

The transient response of a system having feedback control:

1. Increases with time
2. Decays with time
3. Remains constant with time
4. First increases then decay

Correct answer: 2. Decays with time

## Meaning of Feedback in Control Systems

In control systems the feedback means:

1. Feeding output signal of one device to the input of the other device
2. Feeding output signal of one device to the input of the two others device
3. Return of a fraction of the output signal to the input of the same device
4. None of these

Correct answer: 3. Return of a fraction of the output signal to the input of the same device

Effect of feedback on control systems is to reduce sensitivity of variations and system transient response control.