Water Supply

Question 1

The first arriving engine officer to a structure fire is responsible for what?

Answer 1

Securing a water supply or assigning it to another engine

Question 2

What should second, third, and fourth due engines do on arrival to structure fire?

Answer 2

Level 1 stage on a hydrant IN DIRECTION OF TRAVEL

Question 3

Hose lays greater than how many feet should be reported to incident command?

Answer 3

600 ft

Question 4

What do the 2nd, 3rd, 4th Engines announce on the main talk group once they have staged on a hydrant? (2)

Answer 4

Announce ARRIVAL and LOCATION

Question 4

Who can be a Water Supply Group supervisor?

Answer 4

Any engine officer or chief officer on scene

Question 5

What are 6 possible reasons why first arriving engine officer may use tank water instead of laying in to hydrant?

Answer 5

1. Confirmed rescue
2. Exact location not obvious
3. Unknown best engine placement
4. Driver can back stretch
5. Best hydrant not in travel path
6. Lay would block 1st due truck

Question 6

What are the max number of lines you can operate with the booster tank water until getting a charged line from a hydrant?

Answer 6

Two 1-3/4” OR
One 2-1/2

Question 7

when connected to a hydrant, pump operators should not allow their intake pressure to drop below what?

Answer 7

20 PSI

Question 8

What color are HIGH pressure hydrants painted? What is the high pressure?

Answer 8

Blue

Up to 350 PSI

Question 9

What is a possible sign of a LOW pressure low flow hydrant?

Answer 9

Maybe marked with a black bonnet

AVOID using these! Too low pressure

Question 10

What size hose should you use for water supply?

Answer 10

3 inch or larger

Question 11

For fires in commercial buildings, companies are EXPECTED to lay in what header?

Answer 11

Double

Question 12

When should a 2nd engine park at the hydrant and relay pump?

Answer 12

There is 300’ or more of hose between 1st engine and hydrant

Question 13

What is the TARGET GPM of hydrant headers?

Answer 13

Single 700gpm
Double 1400gpm

Achieved with lays <300’ normal hydrant pressure

Question 14

What are 4 examples to consider the tactic of using 2 or more engines tank water instead of laying hose to hydrant?

Answer 14

1. Incipient fires/freeway car fires
2. Closest hydrant frozen/inoperable
3. Brush fires need mobile water supply
4. Structure fire with multiple engine long lay to hydrant (Quicker to just use tanks water)

Question 15

What are the 2 threads that hydrants in Portland have on steamer ports?

Answer 15

1. Portland thread (black caps)
2. NFPA thread

Question 16

What is a disadvantage of a forward lay?

Answer 16

At lengths of 300’ and longer, the available GPM is greatly reduced

Question 17

What’s another name for a Private hydrant?

Answer 17

YARD hydrant

Question 18

What size adapters do we carry on the steamer gate?

Answer 18

5”
Cleveland Steamer

Question 19

If the FIRST in engine has not laid in or dropped a tail at the hydrant, what is a good tactic if you are another engine?

Answer 19

Do a REVERSE lay, then you are at hydrant. BOOM

Or down a LONG driveway lay and dropped a tail