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Control Systems

Control Systems
Force balancing equation of a dash-pot element is (where, x = displacement)

 B *x
None of these
 B d2x/dt2
 B dx/dt

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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

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

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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?

 60°
 120°
 360°
 180°

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Control Systems
Angle of asymptotes for complimentary root locus is

 (2q)*180/P
 (2q+1)*180/(P-Z)
 (2q)*180/(P-Z)
 (2q+1)*180/P

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Control Systems
When writing a transfer function which of the following loops are not valid loops?

 Self loops at output node.
 Both 1 and 2.
 Self loops at input node.
 Neither 1 nor 2.

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Control Systems
A second order control system has F(jω) = 100/(100 - ω² + 10√2 jω). Find the resonant peak?

 0.707
 1.5
 1
 0.5

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