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Control Systems

Control Systems
Given a unity feedback system with G(s) = k/s(s+4), the value of k for damping ratio of 0.5 is

 1
 16
 64
 4

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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

 3
 1
 2
 0

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

 50.
 0.
 10.
 infinity.

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Control Systems
The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is

 2.
 10.
 1.
 5.

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Control Systems
Find the Laplace transform for sinωt?

 1/s
 s/(s²+ω²)
 ω/(s²+ω²)
 1/s²

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Control Systems
At which frequency does the Bode magnitude plots for the functions K/S2 have gain crossover frequency

 ω = 0 rad/sec.
 ω = √K rad/sec.
 ω = K2 rad/sec.
 ω = K rad/sec.

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