Fire Fighter 1 Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What is a double jacket hose primarily constructed with?

One layer of woven fiber

Two layers of woven fibers

A double jacket hose is primarily constructed with two layers of woven fibers, which contributes to its durability and strength. The outer jacket provides protection and resistance to abrasion, while the inner jacket maintains the shape and integrity of the hose under pressure. This design effectively allows the hose to withstand high pressures during firefighting operations while also being flexible enough to maneuver in various environments. The materials and construction ensure that double jacket hoses are able to endure the rugged conditions they often face, making them a preferred choice among firefighters for delivering water at high volumes. The presence of two layers enhances the hose's performance and longevity, which are critical factors in firefighting scenarios.

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A single layer of rubber

Three layers of plastic

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