Technician A says that some fuel systems are under pressure when the engine is not running. Technician B says that the cooling system should only be dismantled after the engine has cooled down. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because some fuel systems operate under pressure even when the engine is not running, and it can be dangerous to work on these systems without depressurization precautions. Technician B is correct because dismantling a cooling system while the engine is still hot can result in injury from hot coolant or steam. Therefore, both Technician A and Technician B are correct.

Technician a Says That Some Fuel Systems Are Under Pressure