Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
Points on the delta attack 400 s pro |
flow rate: 130,230, 300 and 400
Working pressure of 6 bar but will still operate at 3 bar. Normal operating range 5-8 bar.
More than 5 missing / broken teeth= defective
|
|
|
Points on rosenbauer RB101 |
Flow rate: 130,230,300,400 litres per minute
Optimum pressure 6 bar Still effective at 3 bar if optimum pressure cannot be achieved
|
|
|
Rosenbauer project 2 |
Larger branch than delta 400 or rosenbauer 101.
Optimum working pressure 7bar Can work at 3.5 -7 bar Throw of 57m 7 bar jet can produce jet of 630lpm Maximum flow rate 930lpm jet and spray combined |
|
|
What is a McDonald's coupling |
Used on Hosereel branch delta attack 100 - hermaphrodite male / female coupling |
|
|
When should ground monitors be used? |
. Larger volume of water is required than can be provided by hand controlled branches. . Operations require extinguishing media to be thrown at a greater distance. . Operations require extinguishing media over long time periods in same area of operation |
|
|
Akron Mercury ground monitor : single flow rate foam nozzle |
- delivers pre-mixed, aspirated foam at a flow rate of 950 lpm throw of 36m |
|
|
Akron Mercury ground monitor : variable flow rate variable jet/ spray water deployment nozzle |
delivers water at 950, 1400 and 1900 lpm- throw of 57m at 1900 lpm |
|
|
How can jet reaction be controlled? |
-Adopt a position on even and stable ground (not icy, slippery or covered in rubble). -Start with a pressure and flow-rate that can be coped with and increase the flow-rate/ pressure as and when required. - Have at least two firefighters on the branch when working with high flow-rates and high pressures and open and close the branch slowly. -Make sure the hose runs out in a straight line behind the branch operator. |
|
|
When are branches tested |
tested - acceptance - quarterly inspection - annually - daily with inventory checks - after operational use |
