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Control Systems

Control Systems
Advantages of open loop control system is/are

 simple and economical.
 accurate.
 reliable.
All of these

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Control Systems
A lead compensator used for a closed loop controller has the following transfer function For such a lead compensator

 a < kb.
 b < a.
 a > kb.
 a < b.

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Control Systems
A linear time invariant system has an impulse response e2t for t > 0 . If initial condition are 0 and input is e3t, the output for t > 0 is

  e3t - e2t.
  e5t.
  e2t - e3t.
  e2t + e3t.

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Control Systems
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be

 1/11.
 ¾.
 10.
 Zero.

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Control Systems
For a lead compensator, the poles lie:

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

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Control Systems
The poles of the second order system are at -3 ± j4. The damping ratio of the system is

 3/7
 3/5
 3/4
 4/5

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