Control System MCQs

The transfer function of a system is 1 + s When operated as a unity feedback system, the steady state error to a unit step input will be transfer function Cc(s) ?(1 + 0.01s) The maximum phase angle lead provided by this compensator will occur at a frequency com is equal to

Signal flow graph is used to obtain the

The effect of distance-velocity lag/ transportation lag is

Sinusoidal oscillators are

If the gain of the open-loop system is doubled, the gain margin

Given G(s) = s(s + 2) the transfer function is operated in a closed loop with unity feedback. The closed loop system is

The transfer function of transportation lag is Ca. If the lag is small as compared with the time constant of the system, it can be approximated by

The characteristic equation of a feedback system is s3 + Ks2 + Ss + 10 = 0. For the system to be critically stable, the value of K should be

A linear second-order system with the transfer function G(s) = is S2 + 16s + 49 initially at rest and is subject to a step input signal. The response of the system will exhibit a peak overshool of