FAA Powerplant Written Practice Test

What do maintenance technicians typically check during the inspection of pneumatic starters?

1. Fuel mixture

2. Oil level and magnetic drain plug condition

3. Electrical connections

4. Air pressure levels

The correct answer is: Oil level and magnetic drain plug condition

During the inspection of pneumatic starters, maintenance technicians primarily focus on the oil level and the condition of the magnetic drain plug. The oil level is crucial because it ensures that the starter has sufficient lubrication to function properly, preventing excessive wear and potential failure. The magnetic drain plug is important as it captures metal particles and debris that may indicate wear within the starter system. This inspection helps in assessing the overall health of the pneumatic starter and prevents potential operational issues. In contrast, while fuel mixture checks are related to fuel systems, they do not pertain to pneumatic starters. Electrical connections may be checked in other contexts, such as with electric starters, but they are not the primary focus when inspecting pneumatic starters. Air pressure levels are indeed important for the operation of pneumatic systems, but the hands-on inspection focuses more on lubrication and physical components rather than simply measuring air pressure at this stage.