A 'Proportional Only' controlled automatic process loop is oscillating continually, above and below the set point. To stabilize this controller and loop using the 'gain' adjustment, what controller/loop response would you expect upon process changes vs. set point?

Correct Answer: Option C — By decreasing gain gradually, the process should stabilize in a 'quarter wave' response to system's upsets vs. the set point.

Under USCG National Maritime Center examination standards, the accepted correct answer is: By decreasing gain gradually, the process should stabilize in a 'quarter wave' response to system's upsets vs. the set point..