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48 Cards in this Set

  • Front
  • Back
What type of lining do most fire hoses have?
Rubber or neoprene
What are the most common types of fire hoses?
Single-jacket, double-jacket, rubber single-jacket, hard rubber or plastic noncollapsible
Generally, there are two roles that hoses play: _____ and _____.
Supply and attack.
What does supply hose do?
Supply hose transports water or other agents from a hydrant or other source of supply to a pumper at the fire scene.
What does attack hose do?
Attack hose transports water or other agents, at increased pressure, from the pumper to a nozzle or nozzles or a fire department connection (FDC) for application onto the fire.
What's an FDC?
FDC stands for Fire Department Connection; it's a point at which the fire department can connect into a sprinkler or standpipe system to boost the water flow into the system.
Describe the physical properties and specifications of an FDC.
An FDC consists of a clappered siamese with two or more 2.5" (65mm) intakes or one large-diameter -- 4" (100 mm) or larger -- intake.
What are the common diameters for booster hose?
3/4" (20mm) or 1" (25mm)
Describe the covering, lining, and reinforcement characteristics of booster hose.
•Rubber covered
•Rubber lined
•Fabric reinforced
What are the common diameters for woven-jacket hose?
Anywhere from 1" (25mm) to 6" (150mm)
Describe the covering, lining, and reinforcement characteristics of woven-jacket hose.
•One or two woven fabric jackets
•Rubber lined
What are the common diameters of impregnated single-jacket hose?
1.5" (38mm) to 5" (125mm)
Describe the covering, lining, and reinforcement characteristics of impregnated single-jacket hose.
•Polymer covered
•Polymer lined
What are the common dimensions for noncollapsible intake hose?
2.5" (65mm) to 6" (150mm)
Describe the covering, lining, and reinforcement characteristics of noncollapsible intake hose.
•Rubber covered
•Fabric and wire (helix) reinforced
•Rubber lined
What are the common diameters of flexible noncollapsible intake hose?
2.5" (65mm) to 6" (150mm)
Describe the covering, lining, and reinforcement characteristics of flexible noncollapsible intake hose
•Rubber covered
•Fabric and plastic (helix) reinforced
•Rubber lined
When you talk about the diameter of a fire hose, are you referring to the inside diameter or the outside diameter?
The inside diameter
What are the most common lengths of hoses?
50' (15m) and 100' (30m)
What is intake hose used for?
It connects a fire department pumper or a portable pump to a water source.
What's another term for soft intake hose?
Soft-sleeve hose
What is soft intake hose used for?
It's used to transfer water from a pressurized water source (e.g. a fire hydrant) to the pump intake.
What is hard intake hose (also called "hard suction") used for?
It's used to draft water from a static source. It's also used to siphon water from one portable tank to another, usually in a water shuttle operation.
NFPA 1901 requires certain amounts of certain types of hose to be carried on pumpers. What are they?
15' (4.5m) of large soft intake hose
OR
20' (6m) of hard intake hose

800' (240m) of 2.5" (65mm) or larger fire hose

400' (120m) of 1.5" to 2" attack hose
Roughly how many millimeters (mm) are in an inch?
25mm
What are some steps to take in order to avoid damage to your fire hose?
Avoid laying or pulling hose over rough, sharp edges or objects.

Use hose ramps or bridges to protect hoses from vehicles

Open and close nozzles, valves, and hydrants slowly

Change position of folds in hose when reloading it on apparatus

Provide chafing blocks to prevent abrasion to hose when it vibrates near the pumper

Avoid excessive pump pressure on hoselines
What is an easy way to dehydrate the inner lining of a hose and thus damage it?
Leaving the hose too long in the drying tower or drying it in direct sunlight.
What steps can you take to protect hose from thermal damage?
Protect hose from exposure to excessive heat or fire when possible

Do not allow hose to remain in any heated area after it's dry

Use moderate temperature for mechanical drying

Keep the outside of woven-jacket fire hose dry when not in use

Run water through hose that has not been used for some time to keep the inner lining soft

Avoid laying fire hose on hot pavement to dry

Roll dry hose in a straight roll for storage

Prevent hose from coming into contact or close proximity of exhaust systems

Use hose bed covers on apparatus to shield the hose from the sun
What damaging force is unique to woven-jacket hose?
Mildew and mold
How can one avoid damaging a woven-jacket hose by mildew and mold?
Remove all wet hose from the apparatus after a fire and replace with dry hose

Inspect, wash, and dry hose that has been contaminated in any way

Remove, inspect, sweep, and reload hose if it has not been unloaded from the apparatus during a period of six months. Make sure that the hose is folded at different points than when previously loaded.

Inspect and test hose annually and after possible damage.
What are steps to take to prevent chemical damage to a fire hose?
Scrub hose thoroughly and brush all traces of acid contacts with a solution of baking soda and water.

Remove hose periodically from the apparatus, wash with water, dry thoroughly.

Test hose if you suspect damage

Avoid laying hose in the gutter or next to the curb where vehicles have been parked

Dispose of hose according to departmental SOP if it has been exposed to hazardous materials and cannot be decontaminated
How do you wash hose that has come into contact with oil?
Clean with mild soap or detergent using scrub brushes or straw brooms with a stream of water from a garden hose, then rinse. Or, use a hose-washing machine.
Where does a hose go after it's been washed and dried?
On a hose rack (or on the apparatus)
What are hose couplings usually made of?
Some alloy of brass, aluminum, or magnesium
What are the most common types of couplings?
Threaded and non-threaded
Most attack hose is coupled with ________ couplings.
Threaded
What is the difference between the male and female sides of a coupling?
The male side has external threads, the female side has internal threads.
What are the three components common to every threaded coupling?
Male

Female swivel

Shank
Where are nonthreaded couplings usually used?
Supply and soft-intake hose (hydrants and pump intakes may require threaded couplings)
Threaded couplings come in ____-_____ and ____-_____ variations.
Three-piece and Five-piece
What are the three types of coupling lugs?
Female coupling w/ pin lugs

Male and female couplings w/ rocker lugs

Booster hose coupled w/ recessed lugs
What's an easy way to tell the difference between male and female couplings when they're connected to one another?
The female side will have lugs on the swivel, the male side will have lugs on the shank.
What's a Higbee cut?
A Higbee cut is a special-type of thread design that prevents cross-threading of couplings. Always match the Higbee indicators on the lugs up to one another.
What's a Higbee indicator?
A notch cut into a lug to signify the location of a Higbee cut
What are Storz couplings?
"Sexless" couplings that can be connected or disconnected with a quarter turn.
What are some ways to prevent damage to couplings?
Avoid dropping or dragging couplings

Do not permit vehicles to run over fire hose

Inspect couplings

Remove the gasket and twist the swivel in warm, soapy water

Clean threads

Inspect gasket, and replace if cracked or creased
What must you do before you can disengage Storz couplings?
Depress the locking device
What can't hose washing machines do?
They can't properly clean couplings.