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Automatic Control Systems

Automatic Control Systems
DC tachogenerator can be used in

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

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Automatic Control Systems
Which dc servomotor requires strongest permanent magnet?

Surface wound armature
Surface wound with stationary rotor
Slotted armature
Either A or B

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Automatic Control Systems
Bandwidth is proportional to speed of response.

False
True

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Automatic Control Systems
Nichols chart consists of

Constant magnitude loci
None of these
Magnitude and phase angle loci in log-magnitude versus phase diagram
Constant phase angle loci

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Automatic Control Systems
In Bode plots the frequency at which two asymptotes meet is called corner frequency.

False
True

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Automatic Control Systems
In force current analogy, displacement x is analogous to

Electrostatic energy
Voltage
Charge
Magnetic flux linkage

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