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There are many different types of fire hoses, but the type you're probably picturing is called an "attack hose" that's the hose that takes water from the pumping system to the nozzle. It's the business end of the operation.
The typical attack hose is 1530 cm long and has an inner diameter of as much as 7.6 cm.
The volume of a hose is the length of the hose, times the area of its circular cross-section.
With an inner diameter of 7.6 cm, an attack hose has a cross-section of πr2=3.14*3.8^2= 45.34 square cm. So, the volume of water in a full attack hose is 1530*45.34= 69370.2 cubic cm.
That's about 18.32 gallons.
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∙ 13y ago
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