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Control Systems

Control Systems
For the polynomial , number of roots which lie in the right half of s-plane is

 1
 4
 2
 3

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Control Systems
A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?

 1
 -2
 2
 -1

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Control Systems
The transfer function of a system given by The system is

 a critically damped.
 unstable.
 an under damped.
 an over damped.

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

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

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Control Systems
Lead compensator is used to improve ------------------

 Both 1 and 2
 Transient response
 Steady state response
None of these

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Control Systems
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system?

 2
 0.5
 1
 4

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