Control Systems Error at corner frequency ωcf of first order control system is ------- ±3 db ±4 db ±2 db ±1 db ±3 db ±4 db ±2 db ±1 db ANSWER DOWNLOAD EXAMIANS APP
Control Systems A cascade of three linear time invariant systems is causal and unstable. From this we conclude that at least one system is unstable and at least one system is causal. at least one system is causal and all systems are unstable. the majority are unstable and the majority are causal. each system in the cascade is individually caused and unstable. at least one system is unstable and at least one system is causal. at least one system is causal and all systems are unstable. the majority are unstable and the majority are causal. each system in the cascade is individually caused and unstable. ANSWER DOWNLOAD EXAMIANS APP
Control Systems When the input to a system was with drawn at t = 0, its output was found to decrease exponentially from 1000 units to 500 units in 1.386 sec. The time constant of the system is 0.693. 1.386. 2.000. 0.500. 0.693. 1.386. 2.000. 0.500. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is 4 2 6 8 4 2 6 8 ANSWER DOWNLOAD EXAMIANS APP
Control Systems A second order system has peak over shoot = 50% and period of oscillations 0.2 seconds. Find the resonant frequency? 30.63 rad/s 29.74 ra/s 31.41 rad/s 32.16 rad/s 30.63 rad/s 29.74 ra/s 31.41 rad/s 32.16 rad/s 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: a / b. √( ab ). ab. √( a / b). a / b. √( ab ). ab. √( a / b). ANSWER DOWNLOAD EXAMIANS APP
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