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Automatic Control Systems

Automatic Control Systems
The complicated shapes in the polar plots are only due to time constants in the numerator of transfer functions.

True
False

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Automatic Control Systems
M circles are symmetrical with respect to

M = 1 straight line and real axis
Real and imaginary axis
M = 1 straight line
M = 1 straight line and imaginary axis

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Automatic Control Systems
Which dc servomotor requires strongest permanent magnet?

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

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Automatic Control Systems
Which of the following is used to obtain output position in a position control system?

Synchro
Load cell
Thermistor
Strain gauge

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

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

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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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