Control Systems A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant? 2 sec 5 sec 4 sec 6 sec 2 sec 5 sec 4 sec 6 sec ANSWER DOWNLOAD EXAMIANS APP
Control Systems The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the initial value? 3/5 3/9 0 1/4 3/5 3/9 0 1/4 ANSWER DOWNLOAD EXAMIANS APP
Control Systems A open loop transfer function is given as G(s) = (s+2)/(s+1)(s-1). Find the number of encirclements about '-1+j0'? 3 1 0 2 3 1 0 2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems The amplitude spectrum of a Gaussian pulse is Uniform. Gaussian. Impulse function. A sine function. Uniform. Gaussian. Impulse function. A sine function. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time response for a second order control 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 A property of phase lead compensation is that the overshoot is increased. rise time of closed loop system is reduced. gain margin is reduced. bandwidth of closed loop system is reduced. overshoot is increased. rise time of closed loop system is reduced. gain margin is reduced. bandwidth of closed loop system is reduced. ANSWER DOWNLOAD EXAMIANS APP
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