FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

How many engine driven fuel pumps per engine are required for engines requiring fuel pumps?

1. Two

2. One fuel pump for each engine

3. Three

4. A single pump for all engines

The correct answer is: One fuel pump for each engine

Each engine requires its own engine driven fuel pump. Option A is incorrect as it states two pumps for each engine, which would require double the amount of pumps needed. Option C is incorrect also as it states three pumps, which is more than what is required for each engine. Option D is incorrect because having one pump for all engines would not be efficient and could cause issues if that single pump malfunctions or fails. The correct answer is B, one fuel pump for each engine, ensuring that each engine has its own designated pump to fuel the engine properly.