A 100-foot section of 5-inch hose holds approximately how many gallons of water?

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Study for the TFD Basic Hose Test. Prepare with flashcards and multiple choice questions. Each question offers hints and explanations. Get ready to ace your exam!

Multiple Choice

A 100-foot section of 5-inch hose holds approximately how many gallons of water?

Explanation:
The question shows how to estimate a hose’s water capacity by treating the hose as a cylinder and converting its volume to gallons. Use the cylinder volume formula V = πr^2h, then convert cubic feet to gallons. For a 5-inch hose, the inner radius is 2.5 inches, which is 2.5/12 ≈ 0.2083 feet. The length is 100 feet. So the volume is V ≈ π × (0.2083 ft)^2 × 100 ft ≈ π × 0.0434 × 100 ≈ 13.63 cubic feet. Since 1 cubic foot ≈ 7.4805 gallons, the total gallons ≈ 13.63 × 7.4805 ≈ 102 gallons. So a 100-foot section of 5-inch hose holds about 102 gallons.

The question shows how to estimate a hose’s water capacity by treating the hose as a cylinder and converting its volume to gallons. Use the cylinder volume formula V = πr^2h, then convert cubic feet to gallons.

For a 5-inch hose, the inner radius is 2.5 inches, which is 2.5/12 ≈ 0.2083 feet. The length is 100 feet. So the volume is

V ≈ π × (0.2083 ft)^2 × 100 ft ≈ π × 0.0434 × 100 ≈ 13.63 cubic feet.

Since 1 cubic foot ≈ 7.4805 gallons, the total gallons ≈ 13.63 × 7.4805 ≈ 102 gallons.

So a 100-foot section of 5-inch hose holds about 102 gallons.

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