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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

 2
 1
 0
 3

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Control Systems
Time response for a second order system depends on the value of τ. If τ= 0 then the system is called as

  critically damped system.
  under damped system.
  undamped system.
  over damped system.

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Control Systems
Find the angles of asymptotes of the open loop transfer function G(s) = k(s + 1)/((s(s+2)(s+4)?

 0°, 180°
 90°,270°
 90°,180°
 60°,240°

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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).
 (1/3) × (1-e-3t).
 e6t.

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Control Systems
The output of the system has an effect upon the input quantity, then the system is a

 either 1 or 2.
 open loop control system.
 closed loop control system.
None of these

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Control Systems
Find the Laplace transform for sinωt?

 s/(s²+ω²)
 1/s²
 1/s
 ω/(s²+ω²)

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