Control Systems A system is stable for (where GM = Gain Margin and PM = Phase Margin): PM - ve. GM and PM both +ve. GM -ve. GM and PM both -ve. PM - ve. GM and PM both +ve. GM -ve. GM and PM both -ve. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A function y (t) satisfies the following differential equation : Where, δ (t) is the delta function. Assuming zero initial condition and denoting the unit step function by u(t), y(t) can be formed as et. e-t. e-tu(t). etu(t). et. e-t. e-tu(t). etu(t). ANSWER DOWNLOAD EXAMIANS APP
Control Systems A second order control system is defined by the following equation: 4 d²c(t)/dt² + 8 dc(t)/dt + 16 c(t) = 16 u(t) The damping ratio and natural frequency for this system are respectively 0.25 and 2 rad/s 0.25 and 4 rad/s 0.50 and 2 rad/s 0.50 and 4 rad/s 0.25 and 2 rad/s 0.25 and 4 rad/s 0.50 and 2 rad/s 0.50 and 4 rad/s ANSWER DOWNLOAD EXAMIANS APP
Control Systems A proportional plus derivative controller improves the steady state accuracy both 1 and 2 has high sensitivity increases the stability of the system improves the steady state accuracy both 1 and 2 has high sensitivity increases the stability of the system ANSWER DOWNLOAD EXAMIANS APP
Control Systems Certain control system has input u(t) and output c(t). If the input is first passed through a block having transfer function e-s and unit gain is applied to the applied to the system. The modified output will be c(t).u(t-1) c(t-1).u(t-1) c(t-1).u(t) c(t)u(t) c(t).u(t-1) c(t-1).u(t-1) c(t-1).u(t) c(t)u(t) ANSWER DOWNLOAD EXAMIANS APP
Control Systems Which of the following is/are represents the lag compensator? both 1 and 2 (s+2)/(s+1) (s+5)/(s+6) (s+2)/(s+5) both 1 and 2 (s+2)/(s+1) (s+5)/(s+6) (s+2)/(s+5) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS