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Control Systems

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

 infinity.
 40.
 0.
 20.

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Control Systems
The impulse response of the system described by the differential equation will be

 1/3.
 e-3t u(t).
 e6t.
 (1/3) × (1-e-3t).

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Control Systems
A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t (t ≥ 0). The transfer function of the system is

 (s+1)2/s
 1/s(s+1)2
 s/(s+1)
 s/(s+1)2

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Control Systems
Slope of asymptote in Bode plot of 2nd order system is _____________________ per octave.

 18 dB
 3 dB
 12 dB
 6 dB

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Control Systems
What is the open loop DC gain of a unity feedback control system having closed loop transfer function as

 13/4
 4/9
 9/4
 4/13

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Control Systems
The open loop transfer function for unity feedback system is given by 5(1+0.1s) / (s(1+5s)(1+20s)) Find the steady state error for a step input of magnitude 10 is equal to

 5.
 zero.
 infinite.
 2.

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