Question 128Safety & Environmental - 1st Asst/Chief

The correct answer is B) Direct aqueous film forming foam off the overhead or nearby bulkhead, using a bank down or bounce off method to extinguish the oil fire. This is the correct answer because aqueous film forming foam (AFFF) is the most effective agent for extinguishing an oil fire. AFFF forms a vapor-suppressing film on the surface of the burning liquid, smothering the fire. Applying the AFFF by bouncing it off a nearby surface allows the foam to spread over the oil fire's surface more effectively than a direct stream, which could splash the burning liquid. The other options are incorrect because A) water cannot be used on an oil fire as it will cause the fire to spread, C) a direct water stream is also ineffective against an oil fire, and D) directing AFFF in a straight stream into the fuel would be less effective than the bank down or bounce off method described in the correct answer.