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Control Systems

Control Systems
In a control system, an integrator is represented by

  s2.
  1 / s.
 1 / s2.
  s.

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Control Systems
Negative feedback in a closed loop control system

All of these
 improves disturbance rejection.
 reduces gain.
 reduces sensitivity to parameter variation.

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Control Systems
Angle of asymptotes for complimentary root locus is

 (2q+1)*180/P
 (2q+1)*180/(P-Z)
 (2q)*180/P
 (2q)*180/(P-Z)

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Control Systems
The impulse response of a linear system is e-t, (t > 0). The corresponding transfer function is

 1/s(s+1)
 1/s
 1/(s+1)
 s/(s+1)

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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

 2
 0
 1
 3

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Control Systems
Which system is also known as automatic control system?

 Nether 1 nor 2
 Either 1 or 2
 Open loop control system
 Closed loop control system

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