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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
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

 0
 1
 2
 3

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Control Systems
If the transfer function of a phase lead compensator is (s+a)/(s+b) and that of a lag compensator is (s+p)/(s+q), then which one of the following sets of conditions must be satisfied?

 a < b, p < q
 a < b, p >q
 a > b, p > q
 a > b, p < q

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

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

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Control Systems
Lowest critical frequency is due to pole and it may be present at the origin or nearer to the origin, then the type of network is

 LC.
 RC.
 RL.
 Any of the above.

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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
 0.6 rad/s
 1 rad/s
 0.8 rad/s

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