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82 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Who is responsible for making sure that there is a supply of water for fighting fires? |
Water Authority |
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What are the 3 British Standards for Hydrants? |
-65mm round thread outlet -2000 LPM at 1.7BAR -Opens anticlockwise |
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How should a hydrant be opened? |
Slowly and Fully |
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What are the uses of a Hydrant Plate? |
Give direction to the hydrant, and indicate the size of the water main attached. |
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Hydrant Gear... |
-Standpipe -Hydrant key -Hydrant bar
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Why should a visual inspection of a hydrant be undertaken on a yearly basis? |
-To check condition of the hydrant. -To familiarise with the location of the hydrant. |
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What are the safety precautions when disconnecting a hose from the standpipe? |
-Helmet visor down -Grip hose on top of male coupling -Feel hose to make sure pressure is released |
3 answers |
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What should be done when a screw on leak detection device has been removed? |
-Should not be refitted -Water office informed -Device left at the bottom of the pit |
3 answers |
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What are the 4 diameters of lay-flat hose? |
-45mm -70mm -90mm -150mm |
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How many lengths of 70mm and 45mm hose on pump and pump ladder appliances? |
45mm - 4 lengths 70mm - 10 lengths (50% reserve at station) |
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45mm hose stats... Length? Weight? Max pressure? |
23 metres 9kg Max pressure 15 bar |
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70mm hose stats... Length? Weight? Max pressure? |
23 metres 15kg Max pressure 15 bar |
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90mm hose stats... What appliance is it on? How much is on the appliance? What colour is it? How long and heavy is it? Max pressure? |
-Carried on hose laying unit -4km on appliance -Yellow -30 metres -23.5kg -Maximum pressure 15 bar |
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What are the different lengths of 150mm hose? |
50 metres 10 metres 5 metres |
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Hose reel facts... |
-Stored in coil drums, one on each side of appliance. -Internal diameter 22mm -18.3 metres, 4 lengths per drum |
-storage -diameter -length |
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Hard suction hose facts... |
-Lifts water from an open water supply such as river/lake -2.44 metres long -100mm diameter -2 on each appliance |
-Function -Length -Diameter -Quantity |
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Define "Delivery Hose"... |
45 and 70mm hoses are called delivery hose when delivering water from pump to fire |
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Define "Soft suction" hose... |
70, 90 and 150mm hose can be called soft suction, when supplying a pump from a pressure fed supply, such as a hydrant. |
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Couplings on the 45 and 70mm hose are known as what? |
Quick release instantaneous coupling. |
-Made up of two sections, male and female. -Full PPE should be worn, red dots in line, and water supply switched off to disconnect coupling. |
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When is a storz coupling used? |
Between a 90 and a 150mm hose |
-Interlocking with spanners |
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To prevent damage to a hose, the following 5 steps should be taken... |
-Ramped when laid across road. -Not kinked under pressure. -Not made up when frozen. -Under run before stowing. -Rotated between appliances and reserve store every 3 months. |
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How is a 45 and 70mm hose stored on an appliance? |
Dutch rolled |
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What is the test frequency of a hose? And what does the test consist of? |
-On acceptance -After operational use -Annually
1 length at 15 bar for 1 minute. 7 bar inspection |
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Delta Attack 400-S-Pro and Rosenbauer Select Flow Rb101 flow rates? |
130lpm 230lpm 300lpm 400lpm |
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Delta Attack 400-S-Pro stats.. |
Effective throw at 6 bar 400lpm - 40 metres Optimum working pressure at 6 bar for all rates. Operating range is 5-8 bar |
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What is the flow rate of a Rosenbauer Projet II at 3.5 bar? |
Spray - 290 Jet - 440 Both - 640 |
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What is the flow rate of a Rosenbauer Projet II at 7 bar? |
Spray - 410 Jet - 630 Both - 930 |
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What are the flow rates of the Delta Attack 100-S-Pro? |
50lpm 100lpm 150lpm 230lpm |
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What are the 4 measures to control jet reaction? |
-Adopt a position on even and stable ground. -Start with a managable pressure and increase. -Have at least 2 FF on the branch when working with high flow rates & pressures. -Hose in a straight line behind operator. |
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When is a ground monitor used |
-Water on an area for a long period of time. -Large amount of water is required -Throw water further
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3 answers |
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What is the maximum flow rate of the Akron Ground Monitor? |
1900lpm |
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What is the function of a hosereel adaptor? |
Enables a length of hosereel or hosereel branch to be connected to a standard 65mm instantaneous outlet. |
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Deluge Vs Foam Vs Variable nozzle flow rates.. |
Deluge - 1750lpm Foam - 950lpm Variable - 950 - 1400 - 1900lpm |
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Process of water from source to appliance... |
-Resevoir -Treatment works -Pumping station -Trunk main -Service main |
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When are Hydrants tested and inspected? |
Tested every four years Visually inspected annually between April and September |
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Delta Attack 100-S-Pro Flow rates, handle and grip, coupling |
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Delta Attack 400-S-Pro Flo rates, grip and handle, jet reaction, optimum flow rate, coupling |
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Rosenbauer Projet II |
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Akron Mercury Ground Monitor |
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What kind of coupling is on 45mm and 70mm Hose? |
Quick release instantaneous coupling |
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What is a lay flat hose made of? |
Duraline High Grade Synthetic Rubber, Extruded through polyamide woven jacket |
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Requirements of Hose...? |
-Reliable. -Durable. -Resistant to burst, chemical and kinking. -Light and easy to handle, make up wet and dry. -Smooth internal to reduce frictional loss. -Withstand pressure change. -Stretch 5% in length, 10% in diameter.
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7 requirements |
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What is the pump used on an LFB pumping appliance? |
Godiva 3010 Prima Series Multi Pressure pump, producing 3000lpm at 10 bar pressure, with a 3 metre lift. |
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What is the water and foam capacity on a pumping appliance? |
1365 litres of water. 80 litres of foam. |
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Define pump... |
A pump is a machine, driven by external power, to give energy to fluid. |
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What are the types of pumping appliance? |
-Pump (crew of 4) -Pump Ladder (crew of 4) -Dual purpose pump ladder at 1 app station (crew of 5) |
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Appliance inventory checks are carried out for what 3 purposes? |
-To make sure all equipment is present. -To check condition and readiness. -To check that equipment is correctly stowed. |
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"Stop" |
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"Danger" |
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"Move to attendants right" |
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"Move to attendants left" |
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"Move towards attendant" |
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"Horizontal Distance" Indicates distance between appliance and another object. |
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"Move away" |
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What are the two parts making up a single stage Centrifugal pump? |
-The impeller -The volute |
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Describe an impeller... |
The rotational element of the pump, imparting kinetic energy into fluid. |
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Describe a volute... |
Converts kinetically charged fluid from the impeller, to pressurised energy due to the confined space in the volute casing. |
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Describe P.T.O |
Power Take Off. -Road engine power is diverted from road wheels, to the pump drive shaft. -Prior to PTO engagement, the handbrake should be on an neutral engaged, and PTO placed into stand by. |
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What extra feature does a multi stage pump have that a single pump doesn't? |
A peripheral impeller, allowing for high and low pressure simultaneously. |
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The Godiva 3010 prima series multi pressure pump is a 2 stage Centrifugal pump, so can be used to... |
-Supply high volumes of water at low pressure. -Supply low volumes of water at high pressure. -Supply low and high pressure simultaneously.
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What are the main controls in the pump bay? |
-Hydrant to tank auto fill valve. -Tank to pump valve. -Low pressure delivery valve. -High/Low pressure lever. -Hosereel isolation valve. -Emergency engine stop switch. -ePump Control screen. (EPC) |
7 controls |
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What is the primary function of the High/Low pressure valve? |
Controls flow of water to the peripheral impeller. |
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What are 5 ways to counteract overrunning the appliance? |
1- Find a better water supply 2- Shut down unnecessary jets 3- Reduce flow rates 4- Reduce pressure 5- Withdraw from building |
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Advantages of using the low pressure valve..? |
-Reduce noise -Reduce emissions -Reduce fuel consumption -Reduce overheating |
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Akron ground monitor stats |
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What is the ratio between high to low pressure? |
5:1 |
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How many male couplings are on a collecting breach? |
2 male, one female. |
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Pressure loss calculations: |
70mm - 0.2 bar loss per length 45mm - 1 bar loss per length Hosereel - 6 bar loss per length 1 upward metre - 0.1 bar loss Every floor - 3 metres. |
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What are the factors affecting pressure loss? |
MAIN TWO -Internal diameter of hose -Height in metres above/below water source ALSO -Output flow of water -Length of hoseline |
4 factor |
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What sort of lip do you find on the male part of the instantaneous coupling? |
Annular lip |
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What is a drain boss, and what is it commonly known as? |
A frost valve, drains excess water to prevent freezing and cracking. |
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What types of hydrant plates are there? |
Standard, Double and Directional |
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What kind of coupling is on a stand pipe? |
Pressure release coupling |
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What type of knot do you put in each length of a damaged hose? |
Overhand |
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How often should a hose length be tested? |
-On acceptance -After operational use -Annually |
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On the Delta Attack 400 - S - Pro, when do you require 2 FFs? |
When going 300lpm flow rate or above |
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When does a branch require replacing? |
When it's missing 5 teeth overall, or 3 in a row. |
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What are the different adaptors found on an appliance? |
-Dividing breeches -Collecting breeches -Hosereel adaptor -90mm hose adaptor kit |
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What does number one shout at the end of a drill? |
"Drill complete, all gear made up Gov!" |
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Hydrant set up commands... |
-"Hydrant Ready" Said by hydrant operator when hose attached to hydrant. -"Water on the hydrant" Said by pump operator with raised fist, and repeated by hydrant operator. |
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Hydrant make up commands... |
-"Knock off hydrant" Said by pump operator and repeated by the hydrant operator, with sweeping hand movement away from body. Hydrant supply of water is then switched off. -"Release hydrant pressure" Said by the hydrant operator, and repeated by the pump operator. -"Hydrant pressure released" Said by pump operator and repeated by hydrant operator. Dismantling the hydrant can then commence. |
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6 factors that affect lifting from open water... |
OFPITA -Over coming inertia, energy used to get the water moving. -Frictional Loss, while moving up the hose, frictional loss occurs. -Pump entry loss, the eye of the pump takes energy from the water. -Imperfect vacuum, a perfect seal outside laboratory conditions is impossible. -Temperature of water affects the lift of water. -Atmospheric pressure decreases with altitude. |
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