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Control Systems

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

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

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Control Systems
Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to

 a value between -1 and +1
 finite constant
 zero
 infinite

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

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

 Capacitor.
 Both A and B.
 Inductor.
 Resistor.

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Control Systems
Which of the following is the electrical analogous element for displacement in force-voltage analogy?

 Flux.
 Voltage.
 Current.
 Charge.

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Control Systems
Consider the following statements for phase lead compensation:

 The maximum phase lag occurs at the arithmetic mean of the two corner frequencies.
 nether 1 nor 2
 Phase lead compensation shifts the gain crossover frequency to the right
 both 1 and 2

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