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Control Systems

Control Systems
The characteristic equation of a feedback control is 2s4 + s3 + 3s2 + 5s + 10 = 0. The no of roots in the right half of the s-plane is

 0.
 2.
 3.
 4.

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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

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

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Control Systems
Find the corner frequency for the following transfer function? G(s) = 1/(s+2)

 4 rad/s
 1/4 rad/s
 2 rad/s
 1/2 rad/s

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Control Systems
Angle of asymptotes for complimentary root locus is

 (2q+1)*180/P
 (2q+1)*180/(P-Z)
 (2q)*180/P
 (2q)*180/(P-Z)

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Control Systems
Adding a pole to a system transfer function in terms of compensator represents a --------------- compensator ?

 lag-lead
 lead-lag
 lag
 lead

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Control Systems
The following transfer function represents a phase-lead compensator?

 (s+4)/(s+6)
 (s+4)/(3s+6)
 1/s
 (4s+2)/(6s+1)

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