Technician a Says That Diesel Engine Crankcase Vapors Are Made

Technician A says that diesel engine crankcase vapors are made up primarily of air leaking past the pistons rings and can be vented directly to the atmosphere since it has no hydrocarbon or fuel in the air. Technician B says that crankcase vapors are classified as particulate emissions and are not vented to the atmosphere on late-model engines. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Correct Answer:

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