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Automatic Control Systems

Automatic Control Systems
If poles lie in first quadrant, damping ratio is

1
less than 1
More than 1
Zero

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Automatic Control Systems
The poles with greater displacement from the real axis correspond to

Higher frequencies of oscillations
Unbounded output
Stable response
Lower frequencies of oscillations

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Automatic Control Systems
Integral control action

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

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

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

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Automatic Control Systems
M circles are symmetrical with respect to

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

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Automatic Control Systems
Which dc servomotor requires strongest permanent magnet?

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

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