AG Mechanics CDE Practice Exam

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Which type of governor has a movable air vane that moves based upon the air pressure around the spinning flywheel?

  1. Electrical

  2. Hydraulic

  3. Mechanical

  4. Pneumatic

The correct answer is: Electrical

An electrical governor is the type of governor that has a movable air vane that moves based upon the air pressure around the spinning flywheel. In this type of governor, the movement of the air vane is controlled by an electric signal, which allows for precise adjustments to maintain the desired engine speed. Hydraulic, mechanical, and pneumatic governors operate on different principles and mechanisms compared to an electrical governor. A hydraulic governor uses hydraulic fluid to control the speed of the engine, a mechanical governor uses mechanical linkages to regulate engine speed, and a pneumatic governor uses air pressure to control engine speed. However, none of these types have a movable air vane that moves based upon the air pressure around the spinning flywheel like an electrical governor does.

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