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Control Systems

Control Systems
A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?

 -2
 2
 -1
 1

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Control Systems
The transfer function of the system described by d²/dt²(y(t)) + 3d/dt(y(t)) + 2y(t) = 5u(t) with u(t) as input and y(t) as output is

 5/(s²+3s+2)
 (s²+3s+2)/5
 s(s²+3s+2)/5
 5/s(s²+3s+2)

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

 dash-pot
All of these
 spring element
 mass element

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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
 8
 6
 4

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

 ramp
 parabolic
 impulse
 step

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Control Systems
Negative feedback in a closed loop control system

 reduces gain.
 improves disturbance rejection.
All of these
 reduces sensitivity to parameter variation.

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