Control Systems MCQ Questions & Answers | ECE

A. Gain margin is high

B. Gain margin is close to 1

C. Gain margin is close to 1 or phase margin is zero

D. Gain margin is high and phase margin is 180°

A. Magnitudes of voltages applied to the two stator windings

B. Phase relation of voltages applied to the two stator windings

C. Both magnitude and phase relationship of voltages applied to the two stator windings

D. None of the above

A. Wind screen wiper

B. Aqualing

C. Respiratory system of animal

D. System for controlling antirocket missiles

A. Higher frequencies of oscillations

B. Stable response

C. Lower frequencies of oscillations

D. Unbounded output

A. LED

B. LCD

C. Photodiode

D. Either (a) or (b)

A. Impedance Z

B. Admittance Y

C. Reactance X

D. Conductance G

A. Constant magnitude loci

B. Constant phase angle loci

C. Magnitude and phase angle loci in log-magnitude versus phase diagram

D. None of the above

A. Voltage amplification

B. Power amplification

C. Current amplification

D. Frequency amplification

A. Proportional

B. Derivative

C. Integral

D. Both (b) and (c)

A. True

B. False