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Control Systems

Control Systems
For a unity feedback control system open loop transfer function then acceleration error constant is

 50.
 0.
 20.
 infinity.

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Control Systems
For the polynomial , number of roots which lie in the right half of s-plane is

 3
 4
 1
 2

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Control Systems
Slope of asymptote in Bode plot of 2nd order system is _____________________ per octave.

 18 dB
 3 dB
 12 dB
 6 dB

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Control Systems
The closed loop transfer function of a unity feedback control system is 9/(s² + 3s + 9), then the type of the system is

 0
 3
 1
 2

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Control Systems
With regard to filtering property, the lead compensator is

 high pass filter
 bandpass filter
 band reject filter
 low pass filter

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Control Systems
A proportional plus integral controller

 both 2 and 3
 it increases rise time
 has high sensitivity
 increases the stability of the system

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