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Automatic Control Systems

Automatic Control Systems
The relative stability of a system is given by

Gain margin alone
Phase margin alone
Both phase and gain margins
Either (a) or (b)

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

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

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

Nichols chart
Nyquist plot
Bode plot
Root locus

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Automatic Control Systems
A lead compensator

Increases the stability margin and speeds up the transient-response.
Increases the stability margin
Speeds up the transient response
None of these

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Automatic Control Systems
Nichol’s chart is symmetric about – 180° axis.

True
False

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Automatic Control Systems
Robotic manipulator arms mostly use

Hydraulic actuator
Pneumatic actuator
None of these
Electric motor actuator

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