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Automatic Control Systems

Automatic Control Systems
Lag compensation permits a high gain at low frequencies.

True
False

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Automatic Control Systems
Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.

False
True

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

False
True

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Automatic Control Systems
Which of the following is used to obtain output position in a position control system?

Load cell
Strain gauge
Synchro
Thermistor

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

less than 1
zero
more than 1
1

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Automatic Control Systems
For type 1 system the velocity lag error is

Directly proportional to gain constant
Independent of gain constant
Inversely proportional to gain constant
Inversely proportional to bandwidth of system

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