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. the majority are unstable and the majority are causal. at least one system is unstable and at least one system is causal. each system in the cascade is individually caused and unstable. at least one system is causal and all systems are unstable. the majority are unstable and the majority are causal. at least one system is unstable and at least one system is causal. each system in the cascade is individually caused and unstable. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage? 1.0 Volt. 2.0 Volt. 1.5 Volt. 2.5 Volt. 1.0 Volt. 2.0 Volt. 1.5 Volt. 2.5 Volt. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The unit step error coefficient of a system with unity feedback is 1/6. 1. 0. infinity. 1/6. 1. 0. infinity. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time response for a second order control system depends on value of ξ. If ξ>1 then the system is called as undamped system . under damped system. over damped system. critically damped system. undamped system . under damped system. over damped system. critically damped system. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If the gain k is increased to infinity, then damping ratio will tend to become infinite zero unity 0.707 infinite zero unity 0.707 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Weighting function is in terms of ----------------- Laplace transform of the impulse response Laplace transform of the step response Laplace transform of the ramp response Laplace transform of the parabolic response Laplace transform of the impulse response Laplace transform of the step response Laplace transform of the ramp response Laplace transform of the parabolic response ANSWER DOWNLOAD EXAMIANS APP
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