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Control Systems

Control Systems
A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........?

 1
 5
 2
 3

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Control Systems
The position and velocity error coefficient for the transfer function given below are respectively

 0 and infinity.
 50 and infinity.
 50 and 0.
 0 and 0.

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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,-1
 -2,2

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Control Systems
A open loop transfer function is given as G(s) = (s+2)/(s+1)(s-1). Find the number of encirclements about '-1+j0'?

 2
 0
 1
 3

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Control Systems
Which of the following represents the value of resonant frequency (ωr)?

 (ωn) √(1-ζ²/2)
 (ωn) √(1-ζ²)
 2*(ωn) √(1-ζ²)
 (ωn) √(1-2ζ²)

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Control Systems
The initial slope of Bode plot for a transfer function having no poles at the origin is

 -20dB/decade.
 +10dB/decade.
 -10dB/decade.
 0 dB/decade

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