AUTOMATIC CONTROL SYSTEMS QUIZ

The addition of a pole to the open loop transfer function pulls the root locus

None of these

To the right

Towards right or left depending on the position of new pole

To the left and making the system more stable

TRUE ANSWER : ?
YOUR ANSWER : ?

A lag compensator

Improves steady state behavior of the system

Improves steady state behavior and speeds up the transient response of the system

Speeds up the transient response of the system

Improves steady state behavior and preserves the transient response of the system

TRUE ANSWER : ?
YOUR ANSWER : ?

In a simple on-off controller with differential gap, the magnitude of differential gap determines

The level of accuracy

The life of controller

Both (a) and (b)

Neither (a) nor (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

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

None of these

The gain is increased beyond upper critical value

The gain is decreased below lower critical value

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

The distance of poles from origin depends on

Both A and B

Damping ratio

Neither A nor B

Uqndamped natural frequency

TRUE ANSWER : ?
YOUR ANSWER : ?

Which dc servomotor requires strongest permanent magnet?

Surface wound with stationary rotor

Surface wound armature

Either A or B

Slotted armature

TRUE ANSWER : ?
YOUR ANSWER : ?

Transport lag usually exists in

Pneumatic systems

Thermal, hydraulic and pneumatic systems

Thermal systems

Hydraulic systems and thermal systems

TRUE ANSWER : ?
YOUR ANSWER : ?

For any transfer function, the constant phase angle loci are

Either (a) or (b)

A family of straight lines

A family of circles

Neither (a) nor (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

The effect of adding poles and zeros can be determined quickly by

Nyquist plot

Nichols chart

Bode plot

Root locus

TRUE ANSWER : ?
YOUR ANSWER : ?

In force current analogue, mechanical mobility is analogous to

Impedance Z

Reactance X

Conductance G

Admittance Y

TRUE ANSWER : ?
YOUR ANSWER : ?