Types of Fire Hose
Which type of hose transports water from the hydrant or static water source to the pumping apparatus?
Supply hose
A male hose coupling:
has the thread on the exterior.
According to NFPA 1962, fire hose should be service tested within 90 days before being placed in service for the first time and then:
at least once a year.
A donut hose roll is advantageous because:
the firefighter controls both couplings.
Fires involve a heat-producing chemical reaction between fuel and:
an oxidizer.
Hard suction hose is commonly used:
for drafting from a static water source.
The _____ on a coupling is a flattened angle at the end of the threads that helps prevent cross-threading when connecting couplings.
Higbee cut
Before fire hose and couplings are stored or placed back into service, they should be:
inspected for damage to the hose jacket and threads.
Which type of hose roll is commonly used when storing hose in a storage rack?
Straight roll
The minimum temperature at which a fuel in the air must be heated in order to start self-sustained combustion is known as the:
autoignition temperature (AIT).
A fire hose is labeled according to the:
size of its inside diameter.
What is the purpose of lugs on a fire hose coupling?
Aid in tightening and loosening connections
Hose that is stored in the fire apparatus bay:
must be inspected and cleaned more frequently due to exposure to oil, gasoline, and airborne contaminants.
Which preconnected hose load has hose folds that are laid into the hose bed in an S-shape?
Triple layer load
How does a compartment fire affect pressure in and around gases in the compartment?
Heat from a fire increases the pressure of the surrounding gases.
Why is it advantageous for departments to use hose with national standard threaded couplings?
Different departments that respond together can connect their hose sections without adapters.
Which type of lugs are shallow holes drilled into booster hose couplings that require a special spanner wrench to tighten?
Recessed lugs
What action should be taken to protect fire hose in extremely cold temperatures when it is only being used intermittently at a fire?
Allow some water to flow through the nozzle when it is not being used in order to keep it from freezing.
A _____ can be carried completely on the shoulder and clear of the ground, which makes it less likely that the hose will catch on obstacles.
minuteman load
When solid fuels are heated, they begin to _____ and release fuel gases and vapors.
pyrolize
In order to prevent mildew, _____ hose must be dried before being stored.
woven-jacket natural fiber
The part of the coupling where it attaches to the hose is called the:
shank.
In order to prevent mildew, _____ hose must be dried before being stored.
woven-jacket natural fiber
What can be done to help prevent age deterioration in fire hose?
Regularly repack unused hose loads
In a compartment fire, the interface between the hot gas layers and cooler layer of air is commonly referred to as the:
neutral plane.