Question id 128 - Aircraft General Knowledge - EASA PPL(A) - Private Pilot License

Cooling, lubrication of the engine and disposal of fine abrasion
Cooling of the engine and lubrication of propeller shaft.
For nose reduction and bearing of the propeller shaft
Cooling, lubrication and increasing engine performance.

Training tests and timed exam simulations EASA PPL(A) - Private Pilot License