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Automatic Control Systems

Automatic Control Systems
Nyquist stability criterion uses open loop frequency response characteristics.

True
False

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Automatic Control Systems
In force current analogue, mechanical mobility is analogous to

Conductance G
Reactance X
Impedance Z
Admittance Y

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Automatic Control Systems
The distance of poles from origin depends on

Neither A nor B
Both A and B
Uqndamped natural frequency
Damping ratio

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Automatic Control Systems
Integral control action

May lead to oscillatory response
Removes offset
Neither (a) nor (b)
Both (a) and (b)

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Automatic Control Systems
A lead compensator

Increases the stability margin
None of these
Speeds up the transient response
Increases the stability margin and speeds up the transient-response.

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Automatic Control Systems
The sensor generally used in incremental optical encoder is

LED
LCD
Either (a) or (b)
Photodiode

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