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Control Systems
The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is
45°
80°
60°
30°
45°
80°
60°
30°
Answer
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Related Question
Control Systems
A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t (t ≥ 0). The transfer function of the system is
1/s(s+1)2
s/(s+1)2
(s+1)2/s
s/(s+1)
1/s(s+1)2
s/(s+1)2
(s+1)2/s
s/(s+1)
Answer
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Control Systems
For a unity feedback control system open loop transfer function then acceleration error constant is
20.
0.
infinity.
50.
20.
0.
infinity.
50.
Answer
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Control Systems
Time response for a second order system depends on value of ξ. If ξ = 1 then the system is called as
under damped system.
over damped system.
undamped system.
critically damped system.
under damped system.
over damped system.
undamped system.
critically damped system.
Answer
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Control Systems
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be
10.
Zero.
1/11.
¾.
10.
Zero.
1/11.
¾.
Answer
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Control Systems
Let P = Number of open loop poles and Z = Number of open loop zeros and P > Z, find the number of branches terminating at ∞?
Any of the above
Z
P - Z
P
Any of the above
Z
P - Z
P
Answer
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