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Control Systems

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

 2
 3
 1
 0

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Control Systems
Consider a network function H(s) = 2(s+3)/{(s+2)(s+4)}. What is the steady state response due to step input?

 4/3
 1
 1/2
 3/4

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

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

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Control Systems
Transfer function of zero order hold response is

 (s) × (1 - est).
 (1 / s) × (1 - e-st).
 (1 / s) × (1 - est).
 (1 / s) × e-st.

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Control Systems
The Laplace transform of a transportation lag of 5 seconds is

 e5s.
 e-5s.
 1/(s+5).
 1/(s-5).

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Control Systems
Time taken by the response to reach and stay within a specified error is called

 Peak time.
 Peak overshoot.
 Settling time.
 Raise time.

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