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Control Systems

Control Systems
Transient response is improved in case of

 none of these.
 both A and B.
 lag network.
 lead network.

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Control Systems
Time response for a second order system depends on value of ξ. If ξ = 1 then the system is called as

 under damped system.
 over damped system.
 undamped system.
 critically damped system.

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Control Systems
The magnitude condition for root locus is ..................

 |G(s)H(s)| = 2
 |G(s)H(s)| = 0
 |G(s)H(s)| = 1
 |G(s)H(s)| = ∞

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Control Systems
For a lead compensator, the poles lie:

  on LHS before zero.
  on RHS.
  on LHS.
  on origin.

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

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

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Control Systems
The open loop transfer function of a unity feedback system is given by G(s) = 1/(s+2)². The closed loop transfer function will have poles at

 -2+j,-2-j
 -2,2
 -2,-2
 -2,-1

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