12 - Water Supply

Question 1

Reasons why water is primary extinguishing agent

Answer 1

Inexpensive
Universally abundant
Ability to absorb heat
Can easily be coneyed long distances
Easily stored

Question 2

Sources of water

Answer 2

Municipal water distribution system
Rivers, lakes, ponds creeks
Wells, pools, cisterns
Fire department vehicles with water storage tanks, portable tanks

Question 3

What is COE’s main water supply source?

Answer 3

North Saskatchewan River

Question 4

2 types of hydrant supply

Answer 4

Dead-end hydrant
circulating-feed/looped line hydrant

Question 5

Static water pressure

Answer 5

Pressure of water in the system when not moving

Question 6

Normal operating water pressure

Answer 6

Pressures within the distribution system during normal ocnsumption demands

Question 7

Residual pressure

Answer 7

Total available pressure not used to overcome friction or gravity when water is flowing through the system

Question 8

Hydrant flow colours in Edmonton and discharge

Answer 8

Red - <1900 LPM
Yellow Orange - 1900 - 3800 LPM
Green - 3800 - 5700 LPM
Blue/silver/black - >5700 LPM

Question 9

Fire hydrant service rings

Answer 9

Blue - Hydrant in use
White - Fire dept. use only
Green - under construction
Orange - out-of-service

Question 10

EFRS hoses

Answer 10

25 mm booster
38mm wildland hose
44mm hi-combat attack hose
65mm hi-combat attack hose
125mm supply line/hi-volume hose
150mm soft suction

Question 11

Specs for 44mm nozzle

Answer 11

500 kPa NP
550 LPM
100 kPa/length

Question 12

Specs for 65mm Nozzle

Answer 12

500 kPa NP
950 LPM
50 kPa/ length FL

Question 13

3 flow rated for quick attack monitor

Answer 13

950 LPM
1400 LPM
1900 LPM

Question 14

Piercing nozzle specs

Answer 14

NP - 500 kPa
475 LPM

Question 15

Appliance loss

Answer 15

70 kPa

Question 16

Hose damage categories

Answer 16

Mechanical
Thermal
Chemical
Organic

Question 17

Hose Testing pressures & minutes

Answer 17

44mm - 2100 kPa
65mm GREEN - 2100 kPa
65mm RED - 3500 kPa
hi-Vol - 1400 kPa

3 minutes, don’t leave pump running more than 5 minutes

Question 18

Big Gate Position:

Safely _____, _____, _____
Remove the _____ _____ from _____
Wrap _____ hose
_____ on hose, _____ small gate when _____
When _____ is _____ or safe to do so, remove _____ _____
_____ barrel
_____ Hydrant Gate
_____ or _____ driver or _____ you are ready to turn on
Open hydrant when ordered by driver or sector officer, close drain valve
Gather _____, remove _____, report to your officer for _____

Answer 18

Big Gate Position:
Safely Dismount, PPE, Radio
Remove the Hydrant Gate from Rear
Wrap 125mm hose
Stand on hose, signal small gate when ready
When apparatus is stopped or safe to do so, remove steamer cap
Inspect barrel
Connect Hydrant Gate
Radio or signal driver or sector officer you are ready to turn on
Open hydrant when ordered by driver or sector officer, close drain valve
Gather tools, remove kinks, report to your office for reassignment

Question 19

Small Gate position

Safely _____ , _____, _____
_____ _____ doors
Retrieve _____t from _____
Place kit _____ _____t, in _____ _____
Help BG with _____, _____, _____
Return to position in truck, _____ the _____ _____ to driver and officer
At the scene, _____ _____, un-couple the supply line at the nearest joint
Attach the supply line to the _____ _____
Communicate to the driver line is ready
Report to officer for reassignment

Answer 19

Small Gate position

Safely dismount, PPE, Radio
Open coffin doors
Retrieve hydrant kit from drive rear
Place kit near hydrant, in practical location
Help BG with supply line, wait, ready signal
Return to position in truck, relay the ready signal to driver and officer
At the scene, safely dismount, un-couple the supply line at the nearest joint
Attach the supply line to the appropriate apparatus
Communicate to the driver line is ready
Report to officer for reassignment