Hose, Hydrants and Branches

Question 1

When do you swap hose with station reserve?

Answer 1

Every 3 months

Question 2

What types of hose are there?

Answer 2

Flat lay hose
hose reel hose
hard suction hose

Question 3

What sizes of flat lay hose are there?

Answer 3

45mm
70mm
90mm
150mm

Question 4

What are the lengths & weights of the 45mm & 70mm hose?

Answer 4

45mm - 23m/9kg

70mm - 23m/15kg

Question 5

What is the length and weight of 90mm hose? And what max pressure?

Answer 5

30m/23.5kg & Max 15 bar

Question 6

What is the size/length and number of lengths of the hose reel hose on the appliance?

Answer 6

22mm/18m x 1/ 4 lengths each side

Question 7

What are the lengths of the 150mm hose?

Answer 7

5m, 10m and 50m

Question 8

What are the features of the delta branch?

Answer 8

Flow rate 130/230/300/400 LPM

Pressure 3/6 bar

Question 9

What are the features of the project 2?

Answer 9

7 bar: 630 jet 930 jet and spray

3.5 bar: 440 jet 640 jet and spray

Question 10

What are the features of the Akron ground monitor?

Answer 10

3.5-7 bar
950/1400/1900
Deluge (cone) - 1750
Foam - 950

Question 11

What are the features of the hose reel branch?

Answer 11

50/100/150/230/ Flush LPM

Question 12

What are the features of the appliance?

Answer 12

Tank: 1400l capacity
Supply from eye (open water) 4000lpm
Supply from tank: 2700lpm

Question 13

What are the British standards for hydrants?

Answer 13

Must have 65mm thread
Minimum 2000lpm at 1.7 bar
Must turn anti clockwise

Question 14

Where do we source water?

Answer 14

Rain, reservoir, treatment plants, pump plants, mains (trunk and service), hydrant

Question 15

How do you test a hose?

Answer 15

Have branch open 15 bar for 1 minute, take it down to 7 bar and walk the hose and check every 300mm

Question 16

What do you do to hydrant before connecting?

Answer 16

Setting/shipping the hydrant and flushing it to check it’s operational

Question 17

What types of leak devices are there?

Answer 17

Screw on

Magnetic

Question 18

What do the numbers on the hydrant plates show?

Answer 18

Top number - diameter of hydrant

Bottom number - distance from hydrant

Question 19

What is the name of the hydrant used operationally?

Answer 19

Screw down hydrant

Question 20

What is the purpose of the 90mm adapter kit?

Answer 20

To go from a storz coupling to an instantaneous coupling

Question 21

Minimum pressure on delta branch?

Answer 21

3 bar

Question 22

Why do we change to low pressure when the hose reel if turned off?

Answer 22

1. Reduce emissions
2. Reduce fuel consumption
3. Reduce noise
4. Prevent overheating

Question 23

What is the purpose of the appliance inventories?

Answer 23

1. Make sure all equipment is there and accounted for
2. Check condition and operational readiness, clean and replenished
3. Check everything is stowed away correctly

Question 24

The steps to an operational risk assessment?

Answer 24

1. Evaluate task situation
2. Task the person
3. Select safe systems of work
4. Assess safe systems of work
5. Introduce control measures
6. Re-assess control measures and safe systems work

Question 25

How do you control jet reaction?

Answer 25

1. Adopt stance on stable and even ground
2. Support - at least 2 firefighters
3. Ensure hose runs straight out behind - 3m
4. Open slowly and fully, starting on low pressure and building slowly

Question 26

What are the key elements of the Akron Ground monitor?

Answer 26

• Optimal working pressure of 7 bar
• Deluge 1750 (jet)
• Variable flow 950, 1400, 1900 (jet&spray)
• can turn 20 degree either side
• can turn 30-60 degrees up and down, can also reach 20 degrees with hand and pressure on top
• used when needed for long periods
• used unattended