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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?

 4
 0
 1
 2

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Control Systems
What is the type of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback?

 0
 3
 2
 1

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Control Systems
Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to

 infinite
 zero
 a value between -1 and +1
 finite constant

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Control Systems
Angle of asymptotes for complimentary root locus is

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

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Control Systems
In polar plots if the critical point '-1+j0' is enclosed then the system is --------

 critical stable
 unstable
 stable
 marginally stable

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Control Systems
A transfer function has a zero at s = -1 and poles at s = -1 ± j1. The multiplier being unity, if the input is step function, the steady state response is given by

 0.5∠0°
 2∠90°
 1∠0°
 0.5∠10°

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