Control Systems The following transfer function represents a phase-lead compensator? (4s+2)/(6s+1) 1/s (s+4)/(s+6) (s+4)/(3s+6) (4s+2)/(6s+1) 1/s (s+4)/(s+6) (s+4)/(3s+6) ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer functions of two compensators are given below. Which one is correct? which one is correct? Both C1 and C2 are lag compensator. C1 is a lead compensator and C2 i Both C1 and C2 are lead compensator. C1 is a lag compensator and C2 i Both C1 and C2 are lag compensator. C1 is a lead compensator and C2 i Both C1 and C2 are lead compensator. C1 is a lag compensator and C2 i ANSWER DOWNLOAD EXAMIANS APP
Control Systems A unity feedback control system has forward loop transfer function as e-Ts/s(s+1). Its phase value will be zero at frequency ω1. Which of the following equations should be satisfied by ω1? ω1 = cot(Tω1) ω1 = tan(Tω1) Tω1 = cot(ω1) Tω1 = tan(ω1) ω1 = cot(Tω1) ω1 = tan(Tω1) Tω1 = cot(ω1) Tω1 = tan(ω1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems The optimum values of damping ratio is -------------- 0.3 to 5 0 to 2 0.3 to 0.7 0.9 to 1.1 0.3 to 5 0 to 2 0.3 to 0.7 0.9 to 1.1 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Negative feedback in a closed loop control system improves disturbance rejection. reduces sensitivity to parameter variation. reduces gain. All of these improves disturbance rejection. reduces sensitivity to parameter variation. reduces gain. All of these ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time response for a second order system depends on the value of τ. If τ= 0 then the system is called as over damped system. critically damped system. under damped system. undamped system. over damped system. critically damped system. under damped system. undamped system. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS