7000+ GATE Control System MCQ for Competitive Exams 2024 - 2025 - 1

Question: 1

In hydraulic controllers, the advantage of flapper value over piston valve is the

(A) Control action being immune to friction and dirt

(B) Higher hydraulic power control

(C) Better rigidity

(D) High sensitivity

Question: 2

By adding zero to the system transfer function the improvement to transient response is called

(A) Phase lead and phase lag compensation

(B) Phase lag and phase lead compensation

(C) Phase lag compensation

(D) Phase lead compensation

Question: 3

For a stable system, what are the restriction on the gain margin and phase margin?

(A) Both gain margin and phase margin are positive

(B) Gain margin is positive and phase margin is negative

(C) Gain margin is negative and phase margin is positive

(D) Both gain margin and phase margin are negative

Question: 4

Which one of the following can be used as a tachogenerator in control system?

(A) AC servomotor

(B) DC servomotor

(C) Magnetic amplifier

(D) Microsyn.

Question: 5

In a closed loop control system

(A) Control action is dependent on output

(B) Control action is independent of output

(C) Output is independent of input

(D) There is no feedback