Control Systems A system is stable for (where GM = Gain Margin and PM = Phase Margin): PM - ve. GM and PM both +ve. GM and PM both -ve. GM -ve. PM - ve. GM and PM both +ve. GM and PM both -ve. GM -ve. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer function of a phase lead compensator is given by: G(s) = (1 + 3Ts)/(1 + Ts) where T>0. What is the maximum phase shift provided by such a compensator? 60° 90° 45° 30° 60° 90° 45° 30° ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer function of a linear time invariant system is given as G(s) = 10/(s² + 10s + 10). The steady state value of the output of the system for step input applied at time instant t=2 sec will be undefined 0 infinity 1 undefined 0 infinity 1 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Find the conditions for the system to be stable? Gain margin and phase margins are positive Gain margin is positive but phase margin is negative Gain margin and phase margins are negative Gain margin is negative but phase margin is positive Gain margin and phase margins are positive Gain margin is positive but phase margin is negative Gain margin and phase margins are negative Gain margin is negative but phase margin is positive ANSWER DOWNLOAD EXAMIANS APP
Control Systems The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is 80° 45° 60° 30° 80° 45° 60° 30° ANSWER DOWNLOAD EXAMIANS APP
Control Systems The following transfer function represents a phase-lead compensator? 1/s (4s+2)/(6s+1) (s+4)/(3s+6) (s+4)/(s+6) 1/s (4s+2)/(6s+1) (s+4)/(3s+6) (s+4)/(s+6) ANSWER DOWNLOAD EXAMIANS APP
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