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Control Systems

Control Systems
Differentiation of parabolic response is a -------------- response?

 parabolic
 impulse
 step
 ramp

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Control Systems
By using which of the following elements, mechanical translational systems are obtained?

 mass element
All of these
 dash-pot
 spring element

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Control Systems
A proportional plus integral controller

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

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Control Systems
The Laplace transform of a transportation lag of 5 seconds is

 e-5s.
 1/(s+5).
 1/(s-5).
 e5s.

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Control Systems
Find the angles of asymptotes of the open loop transfer function G(s) = k(s + 1)/((s(s+2)(s+4)?

 90°,270°
 0°, 180°
 60°,240°
 90°,180°

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

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

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