Control Systems A lead compensator used for a closed loop controller has the following transfer function For such a lead compensator a > kb. a < kb. a < b. b < a. a > kb. a < kb. a < b. b < a. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The phase of lead compensator of the system G ( s ) = ( s + a ) / ( s + b ) is at its maximum at: √( ab ). √( a / b). a / b. ab. √( ab ). √( a / b). a / b. ab. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A transfer function has a zero at s = -1 and poles at s = -1 ± j1. The multiplier being unity, if the input is step function, the steady state response is given by 0.5∠10° 0.5∠0° 1∠0° 2∠90° 0.5∠10° 0.5∠0° 1∠0° 2∠90° 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 4 rad/s 0.50 and 2 rad/s 0.25 and 2 rad/s 0.25 and 4 rad/s 0.50 and 4 rad/s 0.50 and 2 rad/s ANSWER DOWNLOAD EXAMIANS APP
Control Systems The error of a system to a ramp input is 1/5, if the type of the system is decreased by one, then the error of unit step input is 5 6/5 0.2 0.167 5 6/5 0.2 0.167 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time taken for the response to rise from zero to 100 % for very first time is called Delay time. Settling time. Rise time. Peak time. Delay time. Settling time. Rise time. Peak time. ANSWER DOWNLOAD EXAMIANS APP
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