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Control Systems

Control Systems
The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is

 5.
 1.
 10.
 2.

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Control Systems
When the input to a system was with drawn at t = 0, its output was found to decrease exponentially from 1000 units to 500 units in 1.386 sec. The time constant of the system is

 0.693.
 1.386.
 0.500.
 2.000.

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

 ramp
 parabolic
 impulse
 step

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Control Systems
First Foster form of a LC network represents which element in the beginning?

 Capacitor.
 Resistor.
 Inductor.
 Both A and B.

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Control Systems
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system?

 2
 4
 1
 0.5

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Control Systems
Which of the following represents the value of resonant frequency (ωr)?

 (ωn) √(1-ζ²/2)
 (ωn) √(1-ζ²)
 (ωn) √(1-2ζ²)
 2*(ωn) √(1-ζ²)

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