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Automatic Control Systems

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

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

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Automatic Control Systems
Which of the following is open loop system?

Respiratory system of animal
Aqualing
Wind screen wiper
System for controlling antirocket missiles

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Automatic Control Systems
Temperature is analogous to

Charge
Flux
Voltage
None of these

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

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

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

Root locus
Nichols chart
Bode plot
Nyquist plot

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

True
False

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