CHAPTER 15 - FIRE HOSE Flashcards
A flexible, portable to be manufactured from watertight materials and 50 to 100 foot lengths that is used to transport water from a source or pump to the point where it is discharged to extinguish fire.
Firehose
Hose that is designed for the purpose of moving water between a water source and a pump that is supplying attack hose lines or fire suppression systems
Supply hose
Hose that is used by trained firefighters to combat fires
Attack hose
Point at which the fire department can connect into a sprinkler or standpipe system to boost the water flow in the system
Fire department connection
Large diameter, collapsible piece of hose used to connect a fire pump to a pressurized water supply source; sometimes incorrectly referred to as soft suction hose.
Soft sleeve hose
Intake hose that connects pumping apparatus or portable pump to a water source
Suction hose
Rigid, non-collapsible hose that operates under vacuum conditions without collapsing, allowing a pumping apparatus for portable pump to draft water from a static or non-pressurized source that is below the elevation of the fire pump, Usually available in 10 foot sections
Hard suction hose
Male or female coupling with a spiral thread
Threaded coupling
Coupling with no distinct male or female components. Also known as storz or sexless coupling
Non-threaded coupling
Portion of the coupling that serves as a point of attachment to the hose
Shank
Special cut at the beginning of the thread on a hose coupling that provides positive identification of the first thread to eliminate cross threading
Higbee cut
Notches or grooves cut into coupling lungs to identify by touch or sight the exact location of the higbee cut
Higbee indicators
Small tool primarily used to tighten or loosen hose couplings; can also be used as a prying tool or a gas key
Spanner wrench
Non-threaded coupling with two hooklike lugs that slip over a ring on the opposite coupling and then rotate 90° clockwise to lock
Quarter turn coupling
Non-threaded coupling commonly found on large diameter hose. Non-threaded fire hose couplings have been used in north American fire and emergency services since the early 1900s. With this type of coupling, the meeting of two couplings is achieved with locks for cams without the use of screw threads.
Storz coupling
Hose appliance with one female inlet and multiple male outlets, usually smaller than the inlet. Outlets are also usually gated.
Wye
Hose appliance used to combine two or more hose lines into one. Has multiple female inlets and one single male outlet.
Siamese
Any of a variety of hose appliances with one female inlet for 2 1/2in or larger hose and with three gated outlets, usually two 1 1/2in outlets and one 2 1/2in outlet.
Water thief
Device for connecting hose couplings with dissimilar threads but with the same inside diameter
Adapter
Device that facilitates the connection of hose lines to provide an uninterrupted flow of extinguishing agent
Fitting
Fitting used to attach a smaller hose to a larger hose
Reducer
Specially designed tool used to open or close a hydrant and to remove hydrant caps
Hydrant wrench
Main hose carrying area of a pumper or other apparatus designed for carrying hose
Hose bed
Arrangement of fire hose in a hose bed or compartment in which the hose lies flat with successive layers one upon the other
Flat load
Arrangement of fire hose usually placed on top of a hose load and connected to the end of the load
Finish
Arrangement of fire hose in a hose bed or compartment in which the hose lies on edge with the folds adjacent to each other
Accordion load
Arrangement of fire hose in a hose bed or compartment in which the hose lies on edge in the form of a horse shoe
Horseshoe load
Extra fold placed along the length of a section of hose as it is loaded so that its coupling rests in proper position
Dutchman
Attack hose connected to a discharge when the hose is loaded; this shortens the time it takes to deploy the hose for firefighting
Preconnect
Noncollapsible rubber covered, rubber lined hose usually wound on a reel and mounted somewhere on the apparatus and used for extinguishment of incipient and smoldering fires.
Booster hose line
Hose application that is attached to the fire hydrant to permit additional supply hoses to be attached without interrupting the flow of water
Four way hydrant valve
The end of a charged hose line that is flowing water without a nozzle or valve to control the flow
Open butt
Attack hose transports water or other agents, at increased pressure, from a source (such as the building standpipe) to the point where water is applied to the fire. True or false?
True
The traditional length of a section of fire hose in North America is 100’. True or false?
False - 50’
On threaded couplings, the male part is cut on the exterior surface. True or false?
True
Nonthreaded couplings are connected with locks or cams rather than screw threads. True or false?
True
Hard rubber booster hose must be washed with mild soap or detergent. True or false?
False - only requires rinsing with clear water
Hard intake hose must be thoroughly dried before being reloaded. True or false?
False - may be placed back on apparatus while wet.
Fittings are used to connect hose of different diameters and thread types. True or false?
True - adapters/reducers
A reverse hose line finish can be used on any size attack hose. True or false?
True
Preconnected hose loads for attack lines are typically carried in the main hose bed. True or false?
False - in areas other than the main hose bed
In a forward lay, hose is deployed from the water source to the incident. True or false?
True
Making a hard intake connection is easier than connecting soft intake hose. True or false?
False - it can be more difficult
When advancing a charged hose line, the working line drag is the quickest and easiest way. True or false?
True
When advancing hose line up and down a stairway, hose should be charged when conditions allow. True or false?
False - uncharged when conditions allow
Improvising a standpipe may be necessary in buildings less than three stories. True or false?
True
One fire fighter may operate a large hose line during exposure protection or overhaul operations. True or false?
True
Occurs when contact with an object or surface causes slices, rips, and abrasions on the exterior covering, crushed or damaged couplings, and cracked inner linings.
Mechanical damage
Can result from exposure to excess heat or cold temps.
Thermal damage
Caused when hose with woven jacket of cotton or other natural fiber is stored wet.
Organic damage
Caused by exposure to petroleum products, paints, acids, or alkalis weakening the hose to the point of bursting under pressure.
Chemical damage
Chemical process in which metal is attacked by some substance in the environment and is converted to an unwanted compound that gradually weakens or destroys metal.
Corrosion
Can cause deterioration and cracking between folds; may occur if hose is left hanging in tower for excessive periods of time.
Age deterioration
Used in pumper discharged and gated wyes
Ball valves
Used to control flow from hydrant
Gate valves
Incorporate flat battle that turns 90 degrees
Butterfly valves
Used in Siamese appliances and FDC to allow water to flow in one direction only
Clapper valves
Protects hose from mechanical damage of dragging over sharp corners
Hose roller
Can be installed when hose king ruptures but must remain charged to continue the fire attack
Hose jacket
Can be used to stop the flow of water in a hose line for various reasons
Hose clamp
Tightens or loosens couplings; has a number of other features built in
Spanner wrench
Used to remove discharge caps from fire hydrant outlets and to open fire hydrant valves
Hydrant wrench
Sometimes used to strike lugs to tighten or loosen intake hose couplings
Rubber mallet
Help prevent damage to fire hose when vehicles must drive over it
Hose bridge or ramp
Device used to protect fire hose from vibrating and rubbing against other surfaces
Chafing block
Used to carry, pull, or handle charged hose lines
Hose strap, hose rope, and hose chain
What is used to describe hose size?
Diameter
Which type of hose has two female or non-threaded couplings?
Soft sleeve hose
Which types of fire hose couplings are very weak and only found on occupant use firehose?
Cast
What part of the threaded coupling is the portion that serves as the point of attachment to the hose?
Shank
What types of lugs are normally found on booster hose?
Recessed lugs
What is an advantage of non-threaded couplings?
Firehose can be quickly connected
When should firehose inspection be scheduled?
At least annually after first use
How should hose be stored in racks in order to prevent damage?
Store hose in rack so that couplings are not in walkways
What type of valve devices combine multiple lines into one line?
Siamese appliances
Which pre-connected hose load for an attack line is designed to be pulled by one person and must be completely removed from the bed before deploying the nozzle end of the hose?
Triple layer load
When making a hydrant connection for a hose lay, communication between the_____is essential.
Driver/operator and firefighter at hydrant
Which type of hose leg is used when the pumper must first go to the fire location before laying supply line?
Reverse lay
Which type of hose lay refers to any number of ways to lay multiple supply hose with a single engine?
Combination lay
What kind of pre-connected hoseline is intended to be deployed without dragging hose on the ground?
Minuteman load
It is acceptable to connect a standpipe on the fire floor only if the:
Standpipe is in an enclosed stairway
Which method of improvising a standpipe can be used for lower floors of high-rise buildings?
Outside stretch
What should be done before advancing hose up a ladder?
Drain hose hose has already been charged
Which method for operating small hose lines is the minimum number required for handling any attack line during interior structural operations?
Two firefighter method
What is the safest method for controlling a loose hose line?
Close the valve at the pump
Hose size refers to the external diameter of the hose. True or false?
False
A hose clamp should be applied approximately 5 feet from the coupling on the supply-side. True or false?
True
NFPA 1901 lists the minimum quantity of hose to be carried on a standard pumper or engine. True or false?
True
In a forward lay, the first coupling to come off the hose bed should be male. True or false
False
When advancing hose up and down the stairway, the hose should be uncharged when conditions allow. True or false?
True
Which type of firehose requires the most care in cleaning?
Woven jacket hose
Which item allows the number of hose lines operating on the fire ground to be increased or decreased?
Valve devices
What is an advantage of the accordion load?
Firefighters can easily pick up a number of folds and place on one shoulder to carry hose from the bed
Which pre-connected hose load is designed to be pulled by one person and must be completely removed from the bed before deploying the nozzle end?
Triple layer load
Which type of hose lay is the most expedient if the apparatus must stay at the water source?
Reverse lay
Series of tests performed on apparatus and equipment in order to ensure operational readiness of the unit
Service test
Fire hose should be tested annually, after repairs have been made, and after a vehicle has run over the hose. True or false?
True
If defects are found during service testing, Jose should be removed from service immediately. True or false?
False - if found tag the hose for repair
When service testing hose, connect the hose to discharges on the pump panel side of the apparatus. True or false?
False - connect on the opposite side of the pump panel
The area for service testing fire hose should be:
Large enough to lay hose in straight lines
Firehose should be serviced tested annually. True or false?
True
When service testing firehose, necessary equipment includes a hose testing machine and a hose test gate valve. True or false?
True
Hose should be tested and links of 50 feet in length or shorter. True or false??
False – 300 feet
If defects are found during service testing, hose should be:
Tagged for repair
