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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is a Branch? |
A branch is a hand held fitting used at the end of a line of hose to direct water |
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Describe the features of the Delta Attack 400-S Pro Branch |
• flow rate control ring • set at 230 litres per minute as default • has a 65mm male instantaneous coupling • pistol grip and a stirrup on/off handle • flow rate can be set to 130, 230, 300 or 400 litres per minute • optimum working pressure is 6 bars, 3 bars is minimum but still effective • pattern adjustment collar • spinning teeth at nozzle outlet |
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Describe the features of the Rosenbauer Pro Jet 2 |
• can provide a combination of jet and spray at the same time or independently • effective working pressure range of between 3.5 bar and 7 bar • At 7 bar it can produce a solid jet at 630 litres per minute and a maximum flow rate of 930 litres per minute • Has a throw of 57m • minimum of 2 people must operate this branch because of jet reaction |
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What are the features of a Delta Attack 100-S PRO Branch (Hose Reel)? |
• Yellow in colour • 18.3m long • 1 hose reel on each side of an appliance • 4x lengths on each drum (8 in total) • connected by McDonald’s coupling • 22m internal bore • 4x flow settings - 50, 100, 150 and 230 litres per minute |
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What is a Akron Mercury Ground Monitor when is it used? |
It is a type of branch designed to operated unattended at ground level and supplied by a 70mm hose. It is used when; • a larger volume of water or foam is required than can be provided by hand controller branches • require water or foam to be thrown at greater distances • required water or foam to be required for long periods of time in the same area • to be used when instructed by an Incident Commander (IC) |
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What are the choice of 3 nozzles on the Akron Mercury Ground Monitor? |
• a variable flow rate variable jet/spray water deployment nozzle which delivers 950, 1400 and 1900 litres per minute • a single flow rate deluge nozzle which delivers water at a flow rate of 1750 litres per minute • a single flow rate foam nozzle of 950 litres per minute |
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What are the two breeches we use and what do they do? |
Dividing Breechings It has 1 male inlet and 2 female couplings. It is used to divide one supply into two separate supplies Collecting Breechings It has two male inlets and 1 female outlet. It is used when two low pressure supplies are combined to give one good supply |
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What is the 90mm hose Adaptor Kit? |
• used to attach to Storz couplings to standard instantaneous couplings • 2m in length • carried in a red NATO box |
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The term Jet Reaction and how it is controlled? |
The feeling of being pushed backwards when the branch is opened • adopt a position on even and stable ground • start with pressure and flow rate that can be coped with and increased • have at least 2 firefighters on the branch when working on high pressures and flow rates • make sure the line runs out in a straight line behind the branch operator |
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