Control Systems A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is -180° 180° 90° -90° -180° 180° 90° -90° ANSWER DOWNLOAD EXAMIANS APP
Control Systems First Foster form of a LC network represents which element in the beginning? Both A and B. Resistor. Inductor. Capacitor. Both A and B. Resistor. Inductor. Capacitor. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Find the conditions for the system to be stable? Gain margin and phase margins are negative Gain margin and phase margins are positive Gain margin is positive but phase margin is negative Gain margin is negative but phase margin is positive Gain margin and phase margins are negative Gain margin and phase margins are positive Gain margin is positive but phase margin is negative Gain margin is negative but phase margin is positive ANSWER DOWNLOAD EXAMIANS APP
Control Systems What is the open loop DC gain of a unity feedback control system having closed loop transfer function as 9/4 4/13 4/9 13/4 9/4 4/13 4/9 13/4 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Negative feedback in a closed loop control system All of these reduces gain. improves disturbance rejection. reduces sensitivity to parameter variation. All of these reduces gain. improves disturbance rejection. reduces sensitivity to parameter variation. ANSWER DOWNLOAD EXAMIANS APP
Control Systems 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 5. zero. infinite. 2. 5. zero. infinite. 2. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS