Control Systems A cascade of three linear time invariant systems is causal and unstable. From this we conclude that at least one system is causal and all systems are unstable. each system in the cascade is individually caused and unstable. the majority are unstable and the majority are causal. at least one system is unstable and at least one system is causal. at least one system is causal and all systems are unstable. each system in the cascade is individually caused and unstable. the majority are unstable and the majority are causal. at least one system is unstable and at least one system is causal. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The magnitude of a transfer function G(jω)H(jω) at gain cross over frequency is any of the above 1 0 infinity any of the above 1 0 infinity ANSWER DOWNLOAD EXAMIANS APP
Control Systems In the integral control of the single area system frequency error is reduced to zero. Then integrator output and speed changer position attain a constant value. integrator o/p increases but speed changer position comes down. integrator o/p decreases but speed changer position moves up. integrator o/p decreases and speed changer position comes down. integrator output and speed changer position attain a constant value. integrator o/p increases but speed changer position comes down. integrator o/p decreases but speed changer position moves up. integrator o/p decreases and speed changer position comes down. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time taken by the response to reach and stay within a specified error is called Raise time. Settling time. Peak overshoot. Peak time. Raise time. Settling time. Peak overshoot. Peak time. ANSWER DOWNLOAD EXAMIANS APP
Control Systems For a unity feedback control system open loop transfer function then velocity error constant is infinity. 10. 50. 0. infinity. 10. 50. 0. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The input-output relationship of a linear time invariant continuous time system is given by r(t) = d²c(t)/dt² + 3 dc(t)/dt + 2 c(t) Where r(t) and c(t) are input and output respectively. What is the transfer function of the system equal to? 1/(s² + 3s + 2) 2/(s² + s + 2) 1/(s² + s + 2) 2/(s² + 3s + 2) 1/(s² + 3s + 2) 2/(s² + s + 2) 1/(s² + s + 2) 2/(s² + 3s + 2) ANSWER DOWNLOAD EXAMIANS APP