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Control Systems

Control Systems
Type and order of transfer function G (s) = K / {s(s + 2)}

 2, 1.
 1, 1.
 1, 2.
 0, 2.

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Control Systems
The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its closed loop transfer function is

 (2s+1)/(s+1)²
 (2s+2)/s²
 (2s+2)/(s+1)²
 (2s+1)/s²

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Control Systems
The characteristic equation of a control system is given by What are the angles of asymptotes of the root loci for k ≥ 0?

 0°, 120°, 240°
 0°, 180°, 300°
 120°, 180°, 240°
 60°, 180°, 300°

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Control Systems
A proportional plus integral controller

 both 2 and 3
 it increases rise time
 increases the stability of the system
 has high sensitivity

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Control Systems
When compared to a 1st order LPF, a 2nd order LPF has

 higher voltage gain.
 lower voltage gain.
 faster drop in filter response.
 higher cut off frequency.

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Control Systems
Weighting function is in terms of -----------------

 Laplace transform of the step response
 Laplace transform of the ramp response
 Laplace transform of the impulse response
 Laplace transform of the parabolic response

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