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Automatic Control Systems

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

Nyquist plot
Nichols chart
Root locus
Bode plot

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Automatic Control Systems
Which dc servomotor requires strongest permanent magnet?

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

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Automatic Control Systems
Magnetic amplifier is used for

Power amplification
Current amplification
Frequency amplification
Voltage amplification

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Automatic Control Systems
The addition of a pole to the open loop transfer function pulls the root locus

None of these
To the right
To the left and making the system more stable
Towards right or left depending on the position of new pole

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

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

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Automatic Control Systems
The sensor generally used in incremental optical encoder is

LCD
Either (a) or (b)
Photodiode
LED

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MORE MCQ ON Automatic Control Systems

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