Questions and Answers
What is the coupling size for both the 1.78" and 1.75" hoses?
What colors distinguish the 1.75" hose?
When will the 1.75" hose be phased out?
What marking is used at the midpoint of both hoses for deployment?
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What is an inappropriate use of the 1.75" and 1.78" hoses together?
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Which hose is used as the Trash Line on all apparatus, if equipped?
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What is the visual distinction of the 1.78" hose?
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How had the 1.78" hose generally been used?
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How is the 1.75" hose carried in Engine Companies?
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What length is the Key True ID 2.25" hose carried in?
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What is the 2.5" hose on engines referred to as when pre-connected?
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What couplings are used on the 2.25" hose?
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Which hose is primarily used for water supply and connecting to sprinkler and standpipe systems?
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Where is the 50' section of 3" hose stored on District engines?
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What color is the 5" hose, except for the indicator section?
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How is the 5" hose loaded in the hose bed?
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How much 5" hose is standard on District engines?
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Which hose is never used as a handheld firefighting line?
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Which type of hose is the primary supply hose of the district?
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Which hose is prominently used for brush fires?
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How long are the individual lengths of booster hose carried on reels by district engines?
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What is the diameter of the hard suction hose carried by district engines?
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What is the primary function of a suction hose?
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Which manual should be referenced for forestry hose?
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How many feet of booster hose are district engines outfitted with?
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What characteristic makes the 5" LDH the preferred supply line while operating from a hydrant?
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What type of material reinforces the hard suction hose?
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Where is the reserve tender's hard suction hose carried?
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Study Notes
1.78" Hose
- Key Combat Sniper 1.78" double jacket hose, ideal for handheld attack lines.
- Delivers effective fire stream, suitable for one firefighter to operate.
- Distinguished by green stripe boarded by black stripes.
- Couplings are 1.5".
1.75" Hose
- Key Combat Ready 1.75" double jacket hose, being phased out through attrition.
- Used as attack line on older engines and aerials, and as Trash Line on all apparatus.
- Characterized by red and blue stripes.
- Couplings are 1.5".
- Marked with black paint at the mid-point for hose deployment.
Hose Types
2.25" Hose
- Key True ID 2.25" hose, carried in 50' lengths in bundles (Denver Bundles).
- Equipped with 2.5" couplings.
2.5" Hose
- Versatile, used as attack line or alternative water supply line.
- Carried on engines as pre-connected line (Blitz Line) or in bulk bed.
- Flat-loaded, alternating long and short.
3" Hose
- Primarily used for water supply, including sprinkler and standpipe systems.
- Available in 50' and 100' lengths.
- Outfitted with 2.5" couplings, compatible with 2.25" and 2.5" hoses.
5" Supply Hose
- 5" Large Diameter Hose (LDH), used for supplying water to fire pumps or aerial waterways.
- 1000 feet of 5" hose is standard on District engines, in 100' lengths.
- Engines also equipped with 50' pony section of 5" hose.
- Flat-loaded, alternating long and short, with an offset of six inches.
- Couplings loaded at the rear of the hosebed.
- Yellow in color, except for red indicator section.
Fire Hose Types
5" Large Diameter Hose (LDH)
- Primary supply hose of the district.
- Delivers large volumes with minimal friction loss.
- Preferred supply line when operating from a hydrant.
Booster Hose
- Prominently used for brush fires, overhaul, and decontamination.
- District engines carry booster hose on reels, in 100' lengths.
- Engines equipped with 200' of booster hose.
Suction Hose
- Used to draft water from a static source.
- Hard suction hose is rigid, reinforced with wire helix to prevent collapse.
- Less flexible than typical fire hoses, creating negative pressure or vacuum inside.
- Hard suction hose carried by District engines is 6" in diameter, in ten-foot lengths.
- Reserve tender equipped with 4" hard suction.
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Description
Identify the features and uses of the 1.78" hose, a popular choice for handheld attack lines in firefighting.
