DC 311 Aqueous Film Forming Foam (AFFF) Transfer Station Operator Practice Test

How many gallons of AFFF does each tank hold?

500 600 700 800

Correct Answer:

600

Explanation:

Tank capacity is tied to safe storage and transfer in an AFFF setup. In this scenario, each storage tank is specified to hold 600 gallons. This size provides enough concentrate for the intended transfers while leaving headspace for expansion and to prevent overfill, which is important for safe operation and proper venting. The other quantities would imply different equipment or operating assumptions not present in the setup, so 600 gallons is the correct capacity for each tank.

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