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Control Systems

Control Systems
What is the order of a closed loop control system for a plant with a transfer function equal to G(s) = k/s²(1+Ts) and with unity feedback

 2
 3
 1
 0

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Control Systems
Lowest critical frequency is due to pole and it may be present at the origin or nearer to the origin, then the type of network is

 LC.
 RC.
 Any of the above.
 RL.

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Control Systems
The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the final value?

 1
 3/5
 1/4
 0

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Control Systems
A proportional plus integral controller

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

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Control Systems
The amplitude spectrum of a Gaussian pulse is

 Gaussian.
 Uniform.
 Impulse function.
 A sine function.

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Control Systems
The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the initial value?

 3/9
 3/5
 1/4
 0

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