Subject area H of 13
Ignition and Starting Systems
5-10% of the A&P Powerplant test, about 5 to 10 of the 100 questions. The FAA's test standard lists 9 knowledge elements and 3 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.H.K1Ignition system theory.
- AM.III.H.K2Spark plug theory.
- AM.III.H.K3Shower of sparks and impulse coupling.
- AM.III.H.K4Three electrical circuits of a magneto system.
- AM.III.H.K5Solid-state ignition systems.
- AM.III.H.K6Digital engine control module (e.g., FADEC).
- AM.III.H.K7Engine starters.
- AM.III.H.K8Magneto system components and operation.
- AM.III.H.K9Turbine engine ignition systems.
Risk management: hazards you must be able to spot and manage
- AM.III.H.R1Advanced and retarded ignition timing (piston engine).
- AM.III.H.R2Maintenance on engines with capacitor discharge ignition systems.
- AM.III.H.R3Working around reciprocating engines with an ungrounded magneto.
Try a sample question
Ignition and Starting Systems ยท AM.III.H.K9
On a turbofan engine, when is continuous ignition, at a lower voltage and energy level, typically used?
Practice all of ignition and starting systems
The full course has questions on every element listed here, with an explanation and FAA source for each.