← All explained questions · Aircraft Structure, Systems and Powerplants
Besides lubrication, which is a function of the engine oil system?
Choices
Generating ignition spark
Spark comes from the magnetos, not the oil system.
✓ Helping cool the engine by carrying away heatcorrect
Oil helps cool the engine in addition to lubricating, cleaning, sealing, and cushioning.
Charging the battery
The alternator charges the battery, not the oil system.
Providing cabin pressurization
Training airplanes are not pressurized by the oil system.
Why
The oil system lubricates, cools, cleans, seals, and cushions the engine; the pilot monitors oil pressure and temperature gauges to judge its health.
FAA source: PHAK Ch. 7 (engine oil systems)browse the reference library →
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.