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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

 3
 1
 0
 2

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Control Systems
The following transfer function represents a phase-lead compensator?

 1/s
 (s+4)/(s+6)
 (s+4)/(3s+6)
 (4s+2)/(6s+1)

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Control Systems
What will be the type of the system, if the steady state performance of control system yields a non zero finite value of the velocity error constant?

 type - 2
 type - 1
 type - 0
 type - 3

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Control Systems
The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become

 0.707
 unity
 infinite
 zero

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

 50.
 20.
 infinity.
 0.

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Control Systems
Transient response is improved in case of

 both A and B.
 lead network.
 lag network.
 none of these.

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