AUTOMATIC CONTROL SYSTEMS QUIZ

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

Magnitudes of voltages applied to the two stator windings

Phase relation of voltages applied to the two stator windings

None of these

Lower frequencies of oscillations

Higher frequencies of oscillations

Stable response

Unbounded output

Thermal systems

Hydraulic systems and thermal systems

Pneumatic systems

Thermal, hydraulic and pneumatic systems

None of these

Hydraulic actuator

Electric motor actuator

Pneumatic actuator

False

True

None of these

Either lie on the real axis or occur in complex conjugate pairs

Always occur in complex conjugate pairs

lie on the real axis

(0 dB, -180°) point on Nichols chart represent critical Point (-1, 0)

M loci are centred about (0 dB, -180°) point

It is symmetric about -180°

The frequency at intersection of G(j?) locus and M = +3 dB locus gives bandwidth of closed loop system

Speeds up the transient response

Increases the stability margin and speeds up the transient-response.

None of these

Increases the stability margin

Inversely proportional to gain constant

Inversely proportional to bandwidth of system

Independent of gain constant

Directly proportional to gain constant

System for controlling antirocket missiles

Wind screen wiper

Respiratory system of animal

Aqualing