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Automatic Control Systems

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

Bode plot
Nyquist plot
Nichols chart
Root locus

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

LCD
Either (a) or (b)
Photodiode
LED

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

zero
more than 1
1
less than 1

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

The life of controller
Both (a) and (b)
Neither (a) nor (b)
The level of accuracy

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Automatic Control Systems
The complicated shapes in the polar plots are only due to time constants in the numerator of transfer functions.

True
False

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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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