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Automatic Control Systems

Automatic Control Systems
DC tachogenerator can be used in

Neither A nor B
Position control system
Speed control system
Both A and B

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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 open loop system?

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

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

True
False

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Automatic Control Systems
Which control action can never be used alone?

Proportional
Derivative
Both (b) and (c)
Integral

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Automatic Control Systems
In control systems the output of sensor usually, is

Digital electrical signal
Analog electrical signal
Mechanical signal
Analog or digital electrical signal

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