Hoses And Branches Flashcards
1
Q
Hose reel dimensions?
A
- 3x20m each side
- 22mm diameter
2
Q
Hard suction diameter?
A
100mm
3
Q
Hose reel settings for compartment entry?
A
- 150LPM
- 20 BAR
4
Q
Ideal Akron branch settings?
A
- 115LPM
- 3 BAR
5
Q
Where do you fit hose beckett?
A
1 Round below the firefighters straight leg
6
Q
Factors to consider when choosing a hose?
A
- size of fire
- the intended use
- quantity if water available
- pressure and flow required
7
Q
What is jet reaction?
A
An equl and opposite reaction to the force and direction of the jet. (branch pushed backwards and upwards)
8
Q
What is water hammer?
A
When a hydrant is opend or closed too quickly casusing pressre to go back down water main
9
Q
Effects of water hammer?
A
Loss of water supplies, water discolouration, total failiure if hydrants. Can last from hours to days.
