Which of these statements about engine overheating is true?

Question

Accepted Answer

A: You should never remove the radiator cap on a pressurized system until the system is cooled.. As the engine coolant mixture heats it will expand and build up pressure. Removing the radiator cap allows this pressure to vent to the atmosphere, very possibly causing severe burns as the steam and boiling coolant spray you. Never remove a radiator cap until the engine has cooled down.

Which of these statements about engine overheating is true?

Arkansas CDL General Knowledge Test Info