*TB 88- Air Foam Brush Patrol

Question 1

Compressed air foam brush patrol:
____ (low/med/high) expansion ratios are suited for putting down barriers, exposure protection and some mop-up applications

Answer 1

Medium

Question 2

Compressed air foam brush patrol:

____ (low/med/high) expansion ratios are effective insulators and suited for exposure protection

Answer 2

High

Question 3

A ___% Class “A” Foam mixture is utilized for aerial water drops on brush fires

Answer 3

.1%
The .1% mixture results from adding approximately 1/3 of a gallon of concentrate to the helicopter water tank after the tank is filled with water

Question 4

Compressed Air Foam Brush Patrol:

What foam type would best be used for direct application on a fire?

Answer 4

A wet, fluid foam with fast drain time

Question 5

Compressed Air Foam Brush Patrol:
What foam type would best be used for indirect application (exposure protection). This foam will adhere to walls, eaves, roofs, ect.

Answer 5

A dry foam with slow drain times will adhere to vertical surfaces and provide and insulating layer to exposed combustibles.

Question 6

Compressed Air Foam Brush Patrol:

When applying dry foam (low drain time) to outside walls, eaves, roofs, etc., A ___ inch foam layer is appropriate.

Answer 6

1/2”

Question 7

A ____ (fluid/dry?) foam can be utilized to provide a firebreak or to increase the defensible area around a structure.

Answer 7

Fluid foam

Question 8

Compressed Air Foam Brush Patrol:

The removable CAF system includes a ____ gal WATER tank

Answer 8

150 gal

Question 9

Compressed Air Foam Brush Patrol:

The removable CAF system includes a ____ gal FOAM tank

Answer 9

10 gal

Question 10

Compressed Air Foam Brush Patrol:

The removable CAF system includes a ____ gpm water pump

Answer 10

50 gpm

Question 11

Compressed Air Foam Brush Patrol:

The removable CAF system includes a ____ cfm air compressor.

Answer 11

50 cfm

Question 12

Compressed Air Foam Brush Patrol:

Do not engage the 4WD “HIGH” mode above speeds of ___ mph and/or if the front wheels are slipping

Answer 12

55 mph

Question 13

Compressed Air Foam Brush Patrol:

• True or False? To engage “4x4 LOW” setting, you must first bring the vehicle to a complete stop.
• What about for the “4x4 HIGH” setting?

Answer 13

• True

* The “4x4 HIGH” setting can be set while the vehicle is traveling below 55 mph

Question 14

Compressed Air Foam Brush Patrol:

When driving through water, avoid water higher than the bottom of the ___ (if possible) and proceed slowly.

Answer 14

Hubs

Question 15

Compressed Air Foam Brush Patrol

What traction shift selection (2wd/4x4 High or Low /overdrive/etc?) is recommended for driving:
On-highway, dry, hard pavement where maximum fuel economy is desired.

Answer 15

2WD overdrive mode

Question 16

Compressed Air Foam Brush Patrol

What traction shift selection (2wd/4x4 High or Low/overdrive/etc?) is recommended for driving:
On-highway, dry, hard pavement with maximum loads; where steep roads are encountered.

Answer 16

2WD mode

Question 17

Compressed Air Foam Brush Patrol

What traction shift selection (2wd/4x4 High or Low/overdrive/etc?) is recommended for driving:
On-highway and off highway; unpaved graded (fire road) road surface

Answer 17

4WD high mode

Question 18

Compressed Air Foam Brush Patrol

What traction shift selection (2wd/4x4 High or Low/overdrive/etc?) is recommended for driving:
Off highway; extreme conditions: unpaved, steep road surfaces; off road, varied terrain: mud, sand, water.

Answer 18

4WD LOW Mode

Question 19

Compressed Air Foam Brush Patrol

To prevent damage, the electronic shift 4WD is designed to allow up to ___ seconds before the shift command is performed.

Answer 19

45 sec

Question 20

Compressed Air Foam Brush Patrol

Compressor control #1 in “auto” position:
Under static conditions with pressure between 75 and 120, this control will balance air and water pressures within ___ psi

Answer 20

5 psi

Question 21

Compressed Air Foam Brush Patrol

Compressor safe temperature range?

What temp will a warning light/alarm activate?

Answer 21

• 100-170°F

* 180°F

Question 22

Compressed Air Foam Brush Patrol

Engine safe temperature range?

What temp will a warning light/alarm activate?

Answer 22

• 100-220°F

* 220°F

Question 23

Compressed Air Foam Brush Patrol

What 3 things should be checked if the compressor temp warning light/alarm activates?

Answer 23

(1) Check to see there is water in the tank.
(2) Check the temperature of water in the tank.
(3) Check heat exchanger circuit strainer for clogs.

Question 24

Compressed Air Foam Brush Patrol

The auxiliary engine cooler should be opened if engine temp exceeds ____°F

Answer 24

210°F

Question 25

Compressed Air Foam Brush Patrol Water psi is controlled by engine RPM. Minimum pressure is ___ psi and maximum pressure is ___ psi.

Answer 25

40 and 160 psi

Question 26

Compressed Air Foam Brush Patrol How many 1" hose lines can be supplied with the CAF? What type/size nozzle shall be used?

Answer 26

* 3 | * 3/4 to 1" smooth bore

Question 27

Compressed Air Foam Brush Patrol How many 1 1/2" hose lines can be supplied with the CAF? What type/size nozzle shall be used?

Answer 27

* 1 | * 3/4 to 1 1/4" smooth bore

Question 28

If using the brush patrol apparatus to supply auxiliary air (power pneumatic tools), you can advance the throttle to desired air pressure with ____ psi being the maximum.

Answer 28

165psi

Question 29

When supplying auxiliary air (power pneumatic tools) with the brush patrol, monitor booster tank temperature during prolonged operation to avoid overheating. Provide water supply if oil separator tank temperature exceeds ___ degrees F (an alarm sounds at ___ degrees F).

Answer 29

* 160°F | * 180°F

Question 30

Before shutting down the brush patrol after pumping operations, let engine idle for ___ min.

Answer 30

1

Question 31

Compressed Air Foam Brush Patrol Diesel fuel capacity?

Answer 31

10 gal

Question 32

Compressed air foam brush patrol: ____ (low/med/high?) expansion ratios have a wide range of application including flame knockdown, immediate wetting and mop-up.

Answer 32

Low