HH 003 (Branches)

Question 1

What is the optimum working pressure of the Delta Attack Pro S 500 Branch

Answer 1

6 bar

Question 2

The 4 correct measures that Firefighters can take to control jet reaction:

Answer 2

• adopt position on even and stable ground
• start with a pressure and flow rate that can be coped with and increased when required
• have at least 2 Firefighter on the branch when working with high flow rates and high pressure
• make sure the hose runs out in a straight line behind the branch operator

Question 3

2 reasons why, when adjusting the branch flow and spray settings, it should be done with a hand on top of the branch:

Answer 3

• makes sure jet reaction doesn’t push branch upwards
• prevent any leakage going onto branch operators band

Question 4

List 3 reasons when a ground monitor should be used in preference to hand held branches:

Answer 4

• a larger volume of water or foam is required
• operations require extinguishing media to be thrown a further distance
• operations require extinguishing media to be over long periods in the same area of operations

Question 5

What is the maximum flow rate of the Akron Mercury Ground Monitor?

Answer 5

1900

Question 6

What is the optimum operating pressure of the Akron Mercury Ground Monitor?

Answer 6

7 bar

Question 7

How many spinning teeth in the spray pattern nozzle need to be missing in order to render the branch defective?

Answer 7

5 overall or 3 in a row

Question 8

In what direction should the spray pattern be rotated to achieve a jet?

Answer 8

Clockwise

Question 9

In what direction should the spray pattern nozzle be rotated to achieve a spray?

Answer 9

Anti-clockwise