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Control Systems

Control Systems
The steady state error due to ramp input for a type two system is equal to

 non zero number.
 zero.
 infinite.
 constant.

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Control Systems
Find the Laplace transform for sinωt?

 1/s²
 ω/(s²+ω²)
 s/(s²+ω²)
 1/s

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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,-1
 -2+j,-2-j
 -2,-2
 -2,2

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Control Systems
The system is initially critical damped. If the gain of the system is doubled, then it will exhibit

 over damped characteristics.
 undamped characteristics.
 under damped characteristics.
 critical damped characteristics.

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Control Systems
The characteristic equation of a feedback control system is given by s³ + 5s² + (k + 6)s + k = 0. In the root loci diagram, the asymptotes of the root loci for large 'k' meet at a point in the s-plane whose coordinates are

 (-2,0)
 (1,0)
 (2,0)
 (-1,0)

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Control Systems
A second order control system has F(jω) = 100/(100 - ω² + 10√2 jω). Find the resonant peak?

 1
 0.5
 0.707
 1.5

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