Question 1

increases the steady state accuracy.
A)Integrator
B)Differentiator
C)Phase lead compensator
D)Phase lag compensator

Accepted Answer

An integrator increases the steady state accuracy by reducing the steady state error in a control system.

Question 2

A.C. servomotor resembles
A)two phase induction motor
B)Three phase induction motor
C)direct current series motor
D)universal motor

Accepted Answer

A.C. servomotors are designed to operate on AC supply and have characteristics similar to a two-phase induction motor, which allows for precise control of angular position, velocity, and acceleration.

Question 3

As a result of introduction of negative feedback which of the following will not decrease ?
A)Band width
B)Overall gain
C)Distortion
D)Instability

Accepted Answer

Negative feedback in electronic circuits typically decreases overall gain, distortion, and instability but increases the bandwidth. This is because negative feedback tends to stabilize the system, reduce the effects of non-linearities (thus reducing distortion), and lower the gain by feeding a portion of the output back into the system's input in a manner that opposes the input signal. However, it also tends to make the system's response more uniform across a wider range of frequencies, effectively increasing the bandwidth.

Question 4

Regenerative feedback implies feedback with
A)oscillations
B)step input
C)negative sign
D)positive sign

Accepted Answer

Regenerative feedback implies feedback with a positive sign, which means the feedback signal is in phase with the input signal, reinforcing it and potentially leading to oscillations if the loop gain is high enough.

Question 5

The output of a feedback control system must be a function of
A)reference and output
B)reference and input
C)input and feedback signal
D)output and feedback signal

Accepted Answer

The answer of The output of a feedback control system...

Quiz 1: Control Systems and Feedback Loops: Understanding Open and Closed Loop Systems

increases the steady state accuracy.

A.C. servomotor resembles

As a result of introduction of negative feedback which of the following will not decrease ?

Regenerative feedback implies feedback with

The output of a feedback control system must be a function of