Control Systems Negative feedback in a closed loop control system reduces gain. reduces sensitivity to parameter variation. improves disturbance rejection. All of these reduces gain. reduces sensitivity to parameter variation. improves disturbance rejection. All of these ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time response for a second order system depends on value of ξ. If ξ = 1 then the system is called as critically damped system. undamped system. over damped system. under damped system. critically damped system. undamped system. over damped system. under damped system. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The impulse response of an initally relaxed linear system is e-2tu(t). To produce a response of te-2tu(t), the input must be equal to 2e-tu(t). (0.5)e-2tu(t). e-2tu(t). e-tu(t). 2e-tu(t). (0.5)e-2tu(t). e-2tu(t). e-tu(t). ANSWER DOWNLOAD EXAMIANS APP
Control Systems The poles of the second order system are at -3 ± j4. The damping ratio of the system is 3/4 3/5 4/5 3/7 3/4 3/5 4/5 3/7 ANSWER DOWNLOAD EXAMIANS APP
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+1)2/s s/(s+1)2 s/(s+1) 1/s(s+1)2 (s+1)2/s s/(s+1)2 s/(s+1) 1/s(s+1)2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become infinite unity 0.707 zero infinite unity 0.707 zero ANSWER DOWNLOAD EXAMIANS APP
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