Question id 269 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Fuel Is Cooled To Prevent Vapour Locking Interrupting The Fuel Supply To The Nozzles.
Fuel is heated as required whenever fuel filter clogging is detected.
Oil is cooled through thermal exchange with the fuel.
Oil Is Heated Through Thermal Exchange With The Fuel.