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Control Systems

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

 infinity.
 0.
 20.
 40.

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Control Systems
With regard to filtering property, the lead compensator is

 low pass filter
 bandpass filter
 high pass filter
 band reject filter

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Control Systems
The impulse response of an initally relaxed linear system is e-2tu(t). To produce a response of te-2tu(t), the input must be equal to

 (0.5)e-2tu(t).
 e-2tu(t).
 e-tu(t).
 2e-tu(t).

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Control Systems
The transfer functions of two compensators are given below. Which one is correct? which one is correct?

  C1 is a lag compensator and C2 i
  Both C1 and C2 are lead compensator.
  C1 is a lead compensator and C2 i
  Both C1 and C2 are lag compensator.

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Control Systems
When compared to a 1st order LPF, a 2nd order LPF has

 faster drop in filter response.
 higher cut off frequency.
 lower voltage gain.
 higher voltage gain.

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Control Systems
The unit step error coefficient of a system with unity feedback is

 1.
 infinity.
 1/6.
 0.

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