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Control Systems

Control Systems
For a lead compensator, the poles lie:

  on origin.
  on LHS before zero.
  on LHS.
  on RHS.

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Control Systems
Which of the following are the disadvantages of a closed loop control system?

 Complex and costly.
 Reduces the overall gain.
 Oscillatory response.
All of these

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Control Systems
When the input to a system was with drawn at t = 0, its output was found to decrease exponentially from 1000 units to 500 units in 1.386 sec. The time constant of the system is

 2.000.
 0.693.
 0.500.
 1.386.

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Control Systems
What is the type of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback?

 3
 0
 1
 2

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Control Systems
Find the Laplace transform for sinωt?

 1/s
 s/(s²+ω²)
 ω/(s²+ω²)
 1/s²

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Control Systems
None of the poles of a linear control system lie in the right half of s plane. For a bounded input, the output of this system

  could be unbounded.
  none of these.
  tends to zero.
  always bounded.

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