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Automatic Control Systems

Automatic Control Systems
Bandwidth is proportional to speed of response.

True
False

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Automatic Control Systems
For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency.

True
False

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Automatic Control Systems
In root locus analysis the breakaway and break in points

Always occur in complex conjugate pairs
None of these
Either lie on the real axis or occur in complex conjugate pairs
lie on the real axis

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Automatic Control Systems
Which dc servomotor requires strongest permanent magnet?

Surface wound armature
Either A or B
Slotted armature
Surface wound with stationary rotor

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Automatic Control Systems
If poles lie in first quadrant, damping ratio is

More than 1
1
less than 1
Zero

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Automatic Control Systems
The poles with greater displacement from the real axis correspond to

Stable response
Lower frequencies of oscillations
Higher frequencies of oscillations
Unbounded output

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