Two Technicians Are Discussing Oil Filters

question 49

Multiple Choice

Two technicians are discussing oil filters. Technician A says the oil filter has an anti-drain-back valve that prevents the oil in the filter and engine oil passages from returning to the sump when the engine is shut down. Technician B says the oil filter has a bypass valve that in the event the filter becomes plugged, oil can flow directly to the bearings. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B