North Carolina Fireground Operations 8 Practice Test

A wye is a device used to?

Connect three hoses in parallel. Split a single hose into two separate lines. Regulate water flow. Convert a solid stream to a fog.

Correct Answer:

Split a single hose into two separate lines.

Explanation:

A wye fitting splits one hose line into two separate lines. It’s a Y-shaped connector with one inlet and two outlets, allowing you to feed two hoses from a single source. This is especially useful when you need to deploy two attack lines from the same supply or direct water to two different areas without dragging an extra hose from another source. It helps maintain good flow and avoids the complications of simply tying hoses together. It isn’t used to connect three hoses in parallel, doesn’t function as a flow regulator, and isn’t a device for transforming a solid stream into a fog.

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