Subject area M of 13
Propellers
5-10% of the A&P Powerplant test, about 5 to 10 of the 100 questions. The FAA's test standard lists 10 knowledge elements and 2 risk management elements for this area. Here is every one, plus sample questions to try.
What the FAA tests
From the aviation mechanic test standard, FAA-S-ACS-1.
Knowledge: what you must know
- AM.III.M.K1Propeller theory and operation.
- AM.III.M.K2Types of propellers and blade design.
- AM.III.M.K3Pitch control and adjustment.
- AM.III.M.K4Constant speed propeller and governor theory and operation.
- AM.III.M.K5Turbine engine propeller reverse/beta range operation.
- AM.III.M.K6Propeller servicing, maintenance, and inspection requirements.
- AM.III.M.K7Procedures for removal and installation of a propeller.
- AM.III.M.K8Propeller TCDS.
- AM.III.M.K9Propeller synchronization systems.
- AM.III.M.K10Propeller ice control systems.
Risk management: hazards you must be able to spot and manage
- AM.III.M.R1Ground operation.
- AM.III.M.R2Propeller maintenance and inspections.
Try a sample question
Propellers ยท AM.III.M.K10
Why is a propeller electric deicing system operated only while the propellers are turning, apart from short test periods during the takeoff checklist or an inspection?
Practice all of propellers
The full course has questions on every element listed here, with an explanation and FAA source for each.