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Control Systems

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

 2
 1
 3
 0

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Control Systems
The system having characteristic equation is used to be an oscillator. What is the value of k?

 2
 1
 4
 3

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Control Systems
The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) = 0. Find the angle between the asymptotes?

 180°
 60°
 120°
 360°

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Control Systems
The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is

 2
 6
 4
 8

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Control Systems
A proportional plus derivative controller

 has high sensitivity
 improves the steady state accuracy
 increases the stability of the system
 both 1 and 2

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Control Systems
In force-current analogy, electrical analogous quantity for displacement (x) is

 flux.
 voltage.
 inductance.
 capacitance.

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