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Control Systems

Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?

 0
 1
 2
 4

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

 low pass filter
 bandpass filter
 high pass filter
 band reject filter

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Control Systems
The system is initially critical damped. If the gain of the system is doubled, then it will exhibit

 under damped characteristics.
 critical damped characteristics.
 undamped characteristics.
 over damped characteristics.

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Control Systems
The impulse response of the system described by the differential equation will be

 1/3.
 (1/3) × (1-e-3t).
 e-3t u(t).
 e6t.

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Control Systems
The transfer function of a plant is T(s) = 5/(s+5)(s² + 5 + 1). The second order approximation of T(s) using dominant pole concept is

 5/(s+1)(s+5)
 5/(s² + 5 + 1)
 1/(s² + 5 + 1)
 1/(s+1)(s+5)

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Control Systems
Lead network is used to

 improve steady state response.
 both A and C.
 improve transient response.
 increase bandwidth.

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