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Control Systems

Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?

 2
 4
 0
 1

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Control Systems
A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant?

 2 sec
 4 sec
 5 sec
 6 sec

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Control Systems
Lowest critical frequency is due to pole and it may be present at the origin or nearer to the origin, then the type of network is

 Any of the above.
 RL.
 LC.
 RC.

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Control Systems
The type of a control system is obtained from -------------- transfer function?

 both open loop and closed loop
 none of above.
 closed loop
 open loop

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Control Systems
Angle of asymptotes for complimentary root locus is

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

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Control Systems
A second order system has peak over shoot = 50% and period of oscillations 0.2 seconds. Find the resonant frequency?

 29.74 ra/s
 30.63 rad/s
 31.41 rad/s
 32.16 rad/s

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