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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

 0
 1
 3
 2

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Control Systems
A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?

 -2
 2
 1
 -1

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Control Systems
The unit impulse response of second order system is 1/6 * e-0.8t sin(0.6t). THen the natural frequency is

 2 rad/s
 0.8 rad/s
 1 rad/s
 0.6 rad/s

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Control Systems
Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to

 finite constant
 a value between -1 and +1
 infinite
 zero

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Control Systems
The characteristic equation of a feedback control is 2s4 + s3 + 3s2 + 5s + 10 = 0. The no of roots in the right half of the s-plane is

 3.
 2.
 0.
 4.

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

 infinity.
 0.
 50.
 10.

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