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Control Systems
A transfer function has a zero at s = -1 and poles at s = -1 ± j1. The multiplier being unity, if the input is step function, the steady state response is given by
1∠0°
0.5∠0°
2∠90°
0.5∠10°
1∠0°
0.5∠0°
2∠90°
0.5∠10°
Answer
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Related Question
Control Systems
Name test signals used in time response analysis?
All of B, C, D.
Unit step.
Impulse.
Unit ramp.
All of B, C, D.
Unit step.
Impulse.
Unit ramp.
Answer
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Control Systems
Which of the following transfer functions represent under damped second order systems?
4/(s² + 2s + 4)
1/(s² + s + 1)
All of these
2/(s² + 2s + 2)
4/(s² + 2s + 4)
1/(s² + s + 1)
All of these
2/(s² + 2s + 2)
Answer
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Control Systems
For a lead compensator, the poles lie:
on LHS.
on origin.
on RHS.
on LHS before zero.
on LHS.
on origin.
on RHS.
on LHS before zero.
Answer
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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
s/(s+1)
(s+1)2/s
s/(s+1)2
1/s(s+1)2
s/(s+1)
(s+1)2/s
s/(s+1)2
1/s(s+1)2
Answer
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Control Systems
The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) = 0. Find the angle between the asymptotes?
60°
180°
120°
360°
60°
180°
120°
360°
Answer
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