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Automatic Control Systems

Automatic Control Systems
Magnetic amplifier is used for

Power amplification
Frequency amplification
Current amplification
Voltage amplification

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

Thermistor
Strain gauge
Load cell
Synchro

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Automatic Control Systems
For any transfer function, the constant phase angle loci are

A family of straight lines
Either (a) or (b)
Neither (a) nor (b)
A family of circles

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Automatic Control Systems
A system is highly oscillatory if

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

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Automatic Control Systems
Bandwidth is proportional to speed of response.

False
True

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Automatic Control Systems
Temperature is analogous to

Voltage
Charge
Flux
None of these

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