The value of gain margin of the system having G ( s )H ( s ) = 8 / ( s + 2 )3 is 4. 6. 8. 2. TRUE ANSWER : ? YOUR ANSWER : ?
Time taken for the response to rise from zero to 100 % for very first time is called Settling time. Delay time. Peak time. Rise time. TRUE ANSWER : ? YOUR ANSWER : ?
A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is 4 5 6.5 10 TRUE ANSWER : ? YOUR ANSWER : ?
Sparking between the contacts can be reduced by inserting a capacitor in parallel with the contacts. a capacitor in series with the contacts. a reactor in the line. a resistor in the line. TRUE ANSWER : ? YOUR ANSWER : ?
A second order control system has a transfer function 16/(s² + 4s + 16). Find the settling time for 2% tolerance? 2 sec 5 sec 4 sec 10 sec TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following represents the value of resonant frequency (ωr)? (ωn) √(1-ζ²/2) 2*(ωn) √(1-ζ²) (ωn) √(1-ζ²) (ωn) √(1-2ζ²) TRUE ANSWER : ? YOUR ANSWER : ?
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be 10. 1/11. Zero. ¾. TRUE ANSWER : ? YOUR ANSWER : ?
Find the bandwidth of the system, when rise time of the system is give as 1msec? 750 Hz 500 Hz 350 Hz 1 kHz TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is/are the example of actuator? All Hydraulic motor Electric motor Pneumatic motor TRUE ANSWER : ? YOUR ANSWER : ?
A lead compensator used for a closed loop controller has the following transfer function For such a lead compensator a > kb. a < kb. b < a. a < b. TRUE ANSWER : ? YOUR ANSWER : ?