The governor for an emergency diesel generator is shown in the illustration. When a large change in load results in a change in engine speed, which of the parts listed will be the FIRST governor component to react to the change in load? Illustration MO-0094

Correct Answer: Option B — Piece #9

Governor flyweights (piece 9) serve as the primary speed-sensing element. When engine speed fluctuates due to load changes, centrifugal force variation causes these flyweights to immediately react before any mechanical linkage or hydraulic pressure shift takes place.