Other

Question 1

Booster reel lines are usually a ____ foot long, _____ (diameter) rubber line with what kind of nozzle?

Answer 1

150 foot
1 inch
Adjustable gallonage fog nozzle

Question 2

What are the uses for the decon shower?

Answer 2

Hazardous materials incidents or to decontaminate firefighting personnel

Question 3

What nozzle can be used to apply water to areas that are otherwise inaccessible to water streams? Such as ____ and ____.

Answer 3

Piercing or penetrating nozzle
voids and attics

Question 4

In what length sections does forestry hose typically come?

Answer 4

50’ and 100’ sections

Question 5

What are the three different types of monitors used in Fairfax County?

Answer 5

1. Fixed monitors- permanently attached to the pumper
2. Portable monitor-Akron Quick-Attack Mercury Monitor
3. Combination monitors-fixed to the pumper but can be detached and connected to a ground mount to be used as a portable.

Question 6

What hose should be utilized to supply the Akron Quick-Attack mercury monitor?

Answer 6

A single 3” supply hose (2.5” may be used, though the friction loss in the line would be higher). A 4” supply hose shall not be used.

Question 7

What is the maximum inlet pressure for the mercury monitor?

Answer 7

150 psi

Question 8

What is the appliance loss for the mercury monitor

Answer 8

10 psi

Question 9

If flowing less than _____GPM appliance loss is insignificant so 0psi will be used for appliance loss.

Answer 9

350 GPM

Question 10

Flowing over 350 GPM’s appliance loss=

Answer 10

10 psi

Question 11

Appliance loss for ladder pipes, standpipes, and master streams (except the mercury monitor)

Answer 11

25 psi

Question 12

Elevation pressure:
For fire ground operations, round ______ to 5psi for every ____feet of elevation or every _________ above or below the pumper.

Answer 12

For fire ground operations, round .434 to 5 psi for every 10 feet of elevation or every floor above or below the pumper.

Question 13

Maximum safe PDP? (during normal operations)

Answer 13

250 psi

Question 14

Husky Foam system is what kind of system

Answer 14

Electronic direct injection foam system

Question 15

When flowing foam with a waterous around the pump proportioner and being supplied from another source the tank fill must be kept open or closed during operation.

Answer 15

Closed to prevent the water tank from becoming contaminated with concentrate.

Question 16

Waterous around the pump proportioner allows foam solution to flow which discharges?

Answer 16

All discharges

Question 17

Portable foam eductor:
Must be place how far from pump panel?
Within how many feet of the nozzle?
The nozzle can be no higher than ____ feet above eductor.

Answer 17

50 feet from pump panel
within 200 feet of the nozzle
Nozzle no higher than 5 feet above eductor

Question 18

All Fairfax County pumpers carry a minimum of _____ Gallons of foam

Answer 18

40 Gallons

Question 19

Fairfax county CAFS engines carry how much foam and water?

Answer 19

750 Gallons water
40 Gallons class A
40 Gallons class B

Question 20

CAFS for fire attack consists of _____ water and ____ air with a foam application rate of ____%

Answer 20

2/3 water and 1/3 air
rate of .3%

Question 21

CAFS for overhaul and exposure protection consists of _____ water and ____ air with a foam application rate of ____%

Answer 21

1/3 water and 2/3 air
rate of .5%

Question 22

How long can CAFS air compressors be operated for without overheating?

Answer 22

2 hours

Question 23

When using CAFS, which nozzle/tip creates the best finished product for fire attack?

Answer 23

15/16” smooth bore tip

Question 24

When using CAFS, which nozzle/tip creates the best finished product for exposure and overhaul?

Answer 24

15/16” slug or ‘gated butt’

Question 25

Pierce recommends that CAFS only be used in lines up to what length for maximum effectiveness?

Answer 25

250 feet

Question 26

Can supply pumpers gate down their discharges in normal operations?

Answer 26

They should not gate down their discharges

Question 27

In a relay, the maximum amount of water being delivered to the fire scene is limited by what two things?

Answer 27

Water source and pumping capacity of smallest pumper

Question 28

Most Fairfax pumpers are rated at what GPM and pump pressure?

Answer 28

1500 GPM at 150 PSI pump pressure

Question 29

When operating from a static water source with a 1500 GPM pumper, if the pump pressure is increased to 200psi the maximum flow decreases to _________GPM.

Answer 29

1050GPM

Question 30

Most fire hydrants in Fairfax County can deliver a minimum of _________ GPM.

Answer 30

1000 GPM

Question 31

When should sprinkler systems be charged?

Answer 31

When there is smoke or fire showing or upon confirmation of a working fire

Question 32

T or F You should await orders before charging a combination fire protection system.

Answer 32

False These systems should be considered as a standpipe and supplied and charged immediately upon arrival on the scene and without orders.

Question 33

T or F Aerial devices should be provided with their own supply pumper if possible.

Answer 33

True

Question 34

What is the minimum supply line that should be used to supply the aerial device?

Answer 34

One LDH line or two 3" supply lines

Question 35

When drafting, you should position to utilize which intake?

Answer 35

Side intake

Question 36

Any time incoming pressure exceeds _____psi, the pump shall be operated in pump gear.

Answer 36

50 psi

Question 37

T or F After a water supply has been established, the tank to pump valve shall be left open.

Answer 37

False After a water supply has been established, the tank to pump valve shall be closed.