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Control Systems

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

 B d2x/dt2
None of these
 B *x
 B dx/dt

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Control Systems
A system of constant voltage and constant frequency is called _________________ system.

  zero.
  infinite.
None of these
  feedback.

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Control Systems
The open loop transfer function for unity feedback system is given by 5(1+0.1s) / (s(1+5s)(1+20s)) Find the steady state error for a step input of magnitude 10 is equal to

 zero.
 infinite.
 5.
 2.

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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.
 0.
 3.
 2.

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Control Systems
Resonant peak of a marginally stable system is

 any of the above
 0
 infinite
 finite value

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Control Systems
Open loop transfer function,

None of these
 band reject filter.
 band stop filter.
 all pass filter.

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