EXAMIANS
The open loop transfer function for unity feedback system is given by 5(1+0.1s) / (s(1+5s)(1+20s)) Find the steady state error for a step input of magnitude 10 is equal to
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For the polynomial , number of roots which lie in the right half of s-plane is
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Which of the following represents the value of resonant frequency (ωr)?
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The transfer function of a phase lead compensator is given by: G(s) = (1 + 3Ts)/(1 + Ts) where T>0. What is the maximum phase shift provided by such a compensator?
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Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e-at) is equal to
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A lead compensator used for a closed loop controller has the following transfer function For such a lead compensator
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The transfer function of a system is G(s) = 100/((s+1)(s+100)). For unit step input to the system the approximate settling time for 2% criterion is
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The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is
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Certain control system has input u(t) and output c(t). If the input is first passed through a block having transfer function e-s and unit gain is applied to the applied to the system. The modified output will be
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The compensator would provide a maximum phase shift of
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