(1) TB 88- Air Foam Brush Patrol Flashcards
Compressed air foam brush patrol:
____ (low/med/high) expansion ratios are suited for putting down barriers, exposure protection and some mop-up applications
Medium
Compressed air foam brush patrol:
____ (low/med/high) expansion ratios are effective insulators and suited for exposure protection
High
A ___% Class “A” Foam mixture is utilized for aerial water drops on brush fires
.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
Compressed Air Foam Brush Patrol:
What foam type would best be used for direct application on a fire?
A wet, fluid foam with fast drain time
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.
A dry foam with slow drain times will adhere to vertical surfaces and provide and insulating layer to exposed combustibles.
Compressed Air Foam Brush Patrol:
When applying dry foam (low drain time) to outside walls, eaves, roofs, etc., A ___ inch foam layer is appropriate.
1/2”
A ____ (fluid/dry?) foam can be utilized to provide a firebreak or to increase the defensible area around a structure.
Fluid foam
Compressed Air Foam Brush Patrol:
The removable CAF system includes a ____ gal WATER tank
150 gal
Compressed Air Foam Brush Patrol:
The removable CAF system includes a ____ gal FOAM tank
10 gal
Compressed Air Foam Brush Patrol:
The removable CAF system includes a ____ gpm water pump
50 gpm
Compressed Air Foam Brush Patrol:
Do not engage the 4WD “HIGH” mode above speeds of ___ mph and/or if the front wheels are slipping
55 mph
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?
•True
•The “4x4 HIGH” setting can be set while the vehicle is traveling below 55 mph
Compressed Air Foam Brush Patrol:
When driving through water, avoid water higher than the bottom of the ___ (if possible) and proceed slowly.
Hubs
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.
2WD overdrive mode
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.
2WD mode
(Deactivating the OVERDRIVE function is useful, for example, when more engine braking is required as when operating with a heavy load up or down steep hills.)
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
4WD high mode
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.
4WD LOW Mode
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.
45 sec
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
5 psi
Compressed Air Foam Brush Patrol
What 3 things should be checked if the COMPRESSOR temp warning light/alarm activates?
(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.
Compressed Air Foam Brush Patrol
The auxiliary engine cooler should be opened if engine temp exceeds ____°F
210°F
Compressed Air Foam Brush Patrol
Water psi is controlled by engine RPM. Minimum pressure is ___ psi and maximum pressure is ___ psi.
40 and 160 psi
Compressed Air Foam Brush Patrol
How many 1” hose lines can be supplied with the CAF?
What type/size nozzle shall be used?
•3
•3/4 to 1” smooth bore
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?
•1
•3/4 to 1 1/4” smooth bore