Question 400Motor Plants - Assistant Engineer

The correct answer is C) percent of speed change necessary for corrective action by the fuel control. Sensitivity for a diesel engine governor refers to the speed droop, which is the percent of speed change necessary for the fuel control to take corrective action and maintain the desired engine speed. The higher the sensitivity, the smaller the speed change required for the governor to adjust the fuel supply and maintain constant speed, even under varying engine loads. The other options are incorrect because they do not directly describe the sensitivity or speed droop characteristic of the governor. Option A describes the governor's response to load variations, option B refers to the governor's ability to maintain desired speed, and option D describes the ability to maintain constant speed, but none of these specifically address the percent of speed change required for the governor to take action.