An ideal PID controller has the transfer function [1 + (1/0.55) + 0.25]. The frequency at which the magnitude ratio of the controller is 1, is________________?

Related Mcqs:

A bolometer is __________________?

A. Used for the measurement of thermal radiation B. An element which senses optical input and delivers thermal output C. Both A. & B. D. Neither A. nor B....

To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with ________________?

A. Air B. A metal powder or graphite C. Oil D. Mercury...

Which of the systems having the following transfer function is stable ?

A. 1/(S2 + 2) B. 1/(S2 – 2S + 3) C. 1/(S2 + 2S + 2) D. exp (-20 S)/(S2 + 2S – 1)...

Flow rate of sludge is not measured by a/an_________________?

A. Orificemeter B. Open weir C. Kennison nozzle D. Both B. & C....

The second order system with the transfer function 4/(s2 + 2s + 4) has a damping ratio of ___________________?

A. 2.0 B. 0.5 C. 1.0 D. 4.0...