Technician A says that when a diesel fuel tank is vented to atmosphere, more than half the dirt trapped by the fuel filters enters the tank through the breather. Technician B says that a fuel tank breather filter can extend the life of fuel filters. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. Dirt can enter a diesel fuel tank through the breather when it is vented to the atmosphere, and using a fuel tank breather filter can indeed extend the life of fuel filters by reducing the amount of dirt that enters.

Technician a Says That When a Diesel Fuel Tank Is