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Automatic Control Systems

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

Integral
Both (b) and (c)
Derivative
Proportional

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Automatic Control Systems
Bandwidth is proportional to speed of response.

False
True

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

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

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Automatic Control Systems
Robotic manipulator arms mostly use

Pneumatic actuator
Electric motor actuator
None of these
Hydraulic actuator

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Automatic Control Systems
Magnetic amplifier is used for

Frequency amplification
Power amplification
Voltage amplification
Current amplification

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Automatic Control Systems
Integral control action

Neither (a) nor (b)
Removes offset
Both (a) and (b)
May lead to oscillatory response

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