Basics Flashcards
What’s hoses are found on an appliance and what are their sizes?
Hose reel -22mm x 3 x 20m
45mm - 25m
70mm - 25m
What is the diameter of a length of hard suction?
100mm
What branch is attached to a hose reel?
Delta hose reel
What branch is used on a 45mm?
Akron low pressure
0-14 bar
115-750lpn
What branch is attached to a hose reel?
Delta attack high pressure
Pressure - 0 to max
50, 100, 150 and 230lpm
What is the optimum branch setting for compartment entry?
150lpm at 20 bar
What is jet reaction
A reaction equal and opposite to the force and direction of a jet that takes place at the nozzle
What is a water hammer?
Hydrant us opened and closed too quickly causing pressure to go back down a water main
How do you work out capacity of a rectangular water source?
Length X width X average depth X 1000
How do you workout capacity of a lake?
2 X surface area X average depth ÷ 3
How do you work of capacity of a cylindrical tank?
800 X diameter squared X height
What are the requirements of a good knot?
Easy to tie
Easy to untie
Carry out function safely
Not damage line
What are the 3 ways to rescue someone from height?
Walk down
Face to face
Cradle
When working near water what PPE should be worn
Life jacket
Helmets - chin strap back
Floor response PPE
What is the hierarchy for water rescue?
Talk/shout Reach Throw Wade Row Go Don't go Helicopter
