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Automatic Control Systems

Automatic Control Systems
The distance of poles from origin depends on

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

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Automatic Control Systems
A system is highly oscillatory if

Gain margin is high and phase margin is 180°
Gain margin is close to 1
Gain margin is high
Gain margin is close to 1 or phase margin is zero

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Automatic Control Systems
In Bode plots the frequency at which two asymptotes meet is called corner frequency.

False
True

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Automatic Control Systems
The permanent magnet field system of brushless dc servo- motor is generally on

Stator
Either (a) or (b)
Rotor
Partly on stator and partly on rotor

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Automatic Control Systems
Magnetic amplifier is used for

Power amplification
Voltage amplification
Current amplification
Frequency amplification

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Automatic Control Systems
DC tachogenerator can be used in

Position control system
Speed control system
Both A and B
Neither A nor B

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MORE MCQ ON Automatic Control Systems

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