In a pneumatic automation system, a unit producing a signal to govern the position of the controller of the measured variable, relative to the value of the measured variable, is said to have __________.

In USCG Marine Engineering General Subjects, for engine room systems involving 'In a pneumatic automation system, a unit producing a signal to govern the position of the controller of the measured variable, relative to the value of the measured variable, is said to have', the standard operating requirement is: 'proportional action'.