Electronics and Communication Engineering Online Test 2024-2025 Pdf - 1

Question: 1

The effect of techo-meter feedback in a control system is to reduce

(A) damping

(B) only time constant

(C) only gain

(D) both gain and time constant

Question: 2

The difference between the output response and the reference signal is known as the _____ signal.

(A) velocity

(B) bias

(C) actuating

(D) none of these

Question: 3

A field controlled DC servomotor is a

(A) open loop system with a small time constant

(B) closed loop system with a large time constant

(C) closed loop system with a small time constant

(D) open loop system with a larger time constant

Question: 4

The integral of a ramp function becomes

(A) a parabolic function

(B) a unit step function

(C) a gate function

(D) a unit impulse function

Question: 5

If the bandwidth of the system is increased, then

(A) both rise time and damping ratio will increase

(B) rise time will decrease but damping ratio will increase

(C) rise time will increase but damping ratio will decrease

(D) both rise time and damping ratio will decrease