Hose And Nozzle Flashcards
What are fire hoses and nozzles classified as?
Standard firefighting equipment
Fire hoses and nozzles are essential tools used in firefighting operations.
What is the standard length of a fire hose?
15 metres (50 ft)
Shorter lengths of hoses are also available for various applications.
How are nozzles classified?
Based on flow capacity
Nozzles are usually adjustable to create different water streams.
What types of water streams can nozzles create?
- Solid
- Broken
- Fog
These different streams are useful for various firefighting scenarios.
What is the first step in using a hose and nozzle in firefighting?
Check the standpipe or water source for adequate water pressure
Ensuring sufficient water pressure is crucial for effective firefighting.
What is the second step in the procedure for using a hose and nozzle?
Attach the hose with nozzle to the standpipe
Proper attachment is necessary to maintain water flow.
What does deploying the full length of the hose involve?
Unrolling or extending the hose completely
This is important to ensure maximum reach during firefighting.
What does charging the hose mean?
Filling the hose with water
This step is essential before testing the hose for pressure.
What is the purpose of testing the charged hose?
To check for water pressure
Ensuring the hose is functioning correctly before use is vital.
What types of applications, besides water, can hoses and nozzles be used for?
Several types of foam applications
This versatility allows for different firefighting strategies.
What is water fog?
A firefighting technique for Class A and B fires
What is water fog composed of?
Fine particles of water expelled from a water hose through a special high-pressure nozzle
How does water fog extinguish a fire?
By turning water to steam, reducing heat, cutting off oxygen, and extinguishing the fire
What is one benefit of using water fog in firefighting?
Causes much less water damage than straight stream nozzles
Fill in the blank: Water fog is useful as a _______ for rescue teams advancing towards the fire.
heat barrier
