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Control Systems

Control Systems
Which of the following is the electrical analogous element for displacement in force-voltage analogy?

 Voltage.
 Flux.
 Current.
 Charge.

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

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

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Control Systems
If the transfer function of a phase lead compensator is (s+a)/(s+b) and that of a lag compensator is (s+p)/(s+q), then which one of the following sets of conditions must be satisfied?

 a > b, p > q
 a < b, p < q
 a < b, p >q
 a > b, p < q

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Control Systems
A function of one or more variables which conveys information about the nature of physical phenomenon is called

 signal.
 noise.
 system.
 interference.

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Control Systems
Find the stability for the following transfer function G(s) = 50/s(s+5) ?

 Stable
 Critically stable
 Marginally stable
 Unstable

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

  infinite.
  zero.
None of these
  feedback.

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