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Control Systems
A function of one or more variables which conveys information about the nature of physical phenomenon is called
interference.
system.
signal.
noise.
interference.
system.
signal.
noise.
Answer
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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
et.
e-tu(t).
e-t.
etu(t).
et.
e-tu(t).
e-t.
etu(t).
Answer
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Control Systems
Number of sign changes in the entries in 1st column of Routh array denotes the no. of
open loop zeroes in RHP.
zeroes of system in RHP.
open loop poles in RHP.
roots of characteristic polynomial in RHP.
open loop zeroes in RHP.
zeroes of system in RHP.
open loop poles in RHP.
roots of characteristic polynomial in RHP.
Answer
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Control Systems
Name test signals used in time response analysis?
Unit step.
All of B, C, D.
Unit ramp.
Impulse.
Unit step.
All of B, C, D.
Unit ramp.
Impulse.
Answer
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Control Systems
The magnitude condition for root locus is ..................
|G(s)H(s)| = 0
|G(s)H(s)| = 2
|G(s)H(s)| = 1
|G(s)H(s)| = ∞
|G(s)H(s)| = 0
|G(s)H(s)| = 2
|G(s)H(s)| = 1
|G(s)H(s)| = ∞
Answer
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Control Systems
The unit step error coefficient of a system with unity feedback is
0.
1.
1/6.
infinity.
0.
1.
1/6.
infinity.
Answer
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