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Control Systems

Control Systems
For a unity feedback control system open loop transfer function then acceleration error constant is

 50.
 infinity.
 0.
 20.

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Control Systems
A function y (t) satisfies the following differential equation : Where, δ (t) is the delta function. Assuming zero initial condition and denoting the unit step function by u(t), y(t) can be formed as

 etu(t).
 e-t.
 e-tu(t).
 et.

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Control Systems
The initial slope of Bode plot for a transfer function having no poles at the origin is

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

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Control Systems
Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e-at) is equal to

 F(s+a)
 eas*F(s)
 F(s)/(s+a)
 e-as*F(s)

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Control Systems
Adding a pole to a system transfer function in terms of compensator represents a --------------- compensator ?

 lead
 lag
 lead-lag
 lag-lead

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Control Systems
The magnitude condition for root locus is ..................

 |G(s)H(s)| = 1
 |G(s)H(s)| = 2
 |G(s)H(s)| = ∞
 |G(s)H(s)| = 0

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