AUTOMATIC CONTROL SYSTEMS QUIZ

Temperature is analogous to

Voltage

Flux

None of these

Charge

TRUE ANSWER : ?
YOUR ANSWER : ?

The relative stability of a system is given by

Both phase and gain margins

Phase margin alone

Either (a) or (b)

Gain margin alone

TRUE ANSWER : ?
YOUR ANSWER : ?

A conditionally stable system is stable for the value of gain between two critical values. It is unstable if

Both A and B

The gain is increased beyond upper critical value

The gain is decreased below lower critical value

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

M circles are symmetrical with respect to

M = 1 straight line and imaginary axis

Real and imaginary axis

M = 1 straight line and real axis

M = 1 straight line

TRUE ANSWER : ?
YOUR ANSWER : ?

Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

Lag compensation permits a high gain at low frequencies.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

The distance of poles from origin depends on

Neither A nor B

Damping ratio

Both A and B

Uqndamped natural frequency

TRUE ANSWER : ?
YOUR ANSWER : ?

Which control action can never be used alone?

Derivative

Proportional

Both (b) and (c)

Integral

TRUE ANSWER : ?
YOUR ANSWER : ?

Robotic manipulator arms mostly use

Electric motor actuator

Pneumatic actuator

None of these

Hydraulic actuator

TRUE ANSWER : ?
YOUR ANSWER : ?

In the field controlled motor the entire damping comes from

Armature resistance

Back emf

Motor friction and load

Field resistance

TRUE ANSWER : ?
YOUR ANSWER : ?

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