Subject area G of 15
Environmental Systems
5-10% of the A&P Airframe test, about 5 to 10 of the 100 questions. The FAA's test standard lists 10 knowledge elements and 6 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.II.G.K1Pressurization systems.
- AM.II.G.K2Bleed air heating.
- AM.II.G.K3Aircraft instrument cooling.
- AM.II.G.K4Exhaust heat exchanger and system component(s) function, operation, and inspection procedures.
- AM.II.G.K5Combustion heater and system component(s) function, operation, and inspection procedures.
- AM.II.G.K6Vapor-cycle system and system component(s) operation, servicing, and inspection procedures.
- AM.II.G.K7Air-cycle system and system component(s) operation and inspection procedures.
- AM.II.G.K8Cabin pressurization and system component(s) operation and inspection procedures.
- AM.II.G.K9Types of oxygen systems and oxygen system component(s) operation (e.g., chemical generator, pressure cylinder).
- AM.II.G.K10Oxygen system maintenance and inspection procedures.
Risk management: hazards you must be able to spot and manage
- AM.II.G.R1Oxygen system maintenance.
- AM.II.G.R2Recovery of vapor-cycle refrigerant.
- AM.II.G.R3Handling or performing maintenance on, chemical oxygen generating systems.
- AM.II.G.R4Storage, handling, and use of compressed gas cylinder and high pressure systems.
- AM.II.G.R5Manufacturer's recommended servicing procedures, including refrigerant types.
- AM.II.G.R6Maintenance of combustion heaters.
Try 0 sample questions
Sample questions for this area are on their way. The full course covers it already.
Practice all of environmental systems
The full course has questions on every element listed here, with an explanation and FAA source for each.