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Control Systems

Control Systems
A second order control system has F(jω) = 100/(100 - ω² + 10√2 jω). Find the resonant peak?

 0.707
 0.5
 1
 1.5

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Control Systems
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be

 Zero.
 1/11.
 10.
 ¾.

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Control Systems
Certain control system has input u(t) and output c(t). If the input is first passed through a block having transfer function e-s and unit gain is applied to the applied to the system. The modified output will be

 c(t-1).u(t-1)
 c(t)u(t)
 c(t-1).u(t)
 c(t).u(t-1)

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Control Systems
Which of the following controller has sluggish response?

 both 2 and 3
 integral controller
 derivative controller
 proportional controller

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Control Systems
The transfer function for tachometer E(S)/θ(S) is

 KS2
 K/S
 KS
 K

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Control Systems
The optimum values of damping ratio is --------------

 0.3 to 5
 0.3 to 0.7
 0 to 2
 0.9 to 1.1

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