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Control Systems

Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?

 0
 2
 1
 4

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Control Systems
The low frequency and high frequency asymptotes of Bode magnitude plot are respectively -60dB/decade and -40dB/decade. What is the type of the system?

 TYPE III
 TYPE I
 TYPE 0
 TYPE II

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Control Systems
Force balancing equation of a mass element is (where, x = displacement)

 M *x
 M d2x/dt2
 any of the above
 M dx/dt

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Control Systems
Name test signals used in time response analysis?

  All of B, C, D.
  Impulse.
  Unit step.
  Unit ramp.

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Control Systems
The transfer functions of two compensators are given below. Which one is correct? which one is correct?

  C1 is a lead compensator and C2 i
  Both C1 and C2 are lag compensator.
  C1 is a lag compensator and C2 i
  Both C1 and C2 are lead compensator.

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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

 0.500.
 0.693.
 2.000.
 1.386.

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