Control Systems Find the conditions for the system to be stable? Gain margin and phase margins are positive Gain margin is positive but phase margin is negative Gain margin and phase margins are negative Gain margin is negative but phase margin is positive Gain margin and phase margins are positive Gain margin is positive but phase margin is negative Gain margin and phase margins are negative Gain margin is negative but phase margin is positive 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 unity zero 0.707 infinite unity zero 0.707 infinite ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer function of the control system depends on initial conditions of input and output. nature of the input. the system parameters alone. nature of the output. initial conditions of input and output. nature of the input. the system parameters alone. nature of the output. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Negative feedback in a closed loop control system reduces gain. improves disturbance rejection. All of these reduces sensitivity to parameter variation. reduces gain. improves disturbance rejection. All of these reduces sensitivity to parameter variation. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A property of phase lead compensation is that the gain margin is reduced. rise time of closed loop system is reduced. bandwidth of closed loop system is reduced. overshoot is increased. gain margin is reduced. rise time of closed loop system is reduced. bandwidth of closed loop system is reduced. overshoot is increased. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Error at corner frequency ωcf of first order control system is ------- ±4 db ±2 db ±1 db ±3 db ±4 db ±2 db ±1 db ±3 db ANSWER DOWNLOAD EXAMIANS APP
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