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Control Systems

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

 0
 2
 3
 1

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Control Systems
Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ?

 1.
 2.
 0.
 3.

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Control Systems
A transfer function has a zero at s = -1 and poles at s = -1 ± j1. The multiplier being unity, if the input is step function, the steady state response is given by

 0.5∠0°
 2∠90°
 1∠0°
 0.5∠10°

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Control Systems
Differentiation of parabolic response is a -------------- response?

 step
 impulse
 parabolic
 ramp

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Control Systems
The impulse response of an initally relaxed linear system is e-2tu(t). To produce a response of te-2tu(t), the input must be equal to

 2e-tu(t).
 e-2tu(t).
 (0.5)e-2tu(t).
 e-tu(t).

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Control Systems
In a control system, an integrator is represented by

  1 / s.
 1 / s2.
  s2.
  s.

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