Daily Checks - Answer: Pump Drive Control
Pumping instruments
Hoselines
Roof and Bumper Turrets
Agent Tanks
Aux Winterization and/or Colling System
Fuel Tank
Weekly Checks - Answer: Pump and Intake Strainers
Pump Gearbox and packing glands
Pump pressure control device
Foam transfer pump
NFPA 414 - Answer: Standard for Aircraft Rescue and Fire-Fighting Vehicles
Accurate Test results for turret foam testing - Answer: Ensure that wind conditions are under 5mph
Turret nozzles are tilted upward to form a 30 degree angle with the horizontal to determine the
maximum discharge range.
How to perform the turret ground pattern test - Answer: Discharge the foam onto a paved surface for 30
seconds at the specified pressure in both the straight stream and fully dispersed nozzle settings.
Immediately after the foam discharge has stopped, place markers such as cones around the outside
perimeter to preserve the identity of the foam pattern as it fell on the ground. for purposes of defining
the edge of the pattern, disregard any foam that is less than one half inch deep.
Finally, measure the distance from the nozzle to the end of the effective foam pattern and plot the
results on graph paper
Prior to conducting the expansion and drainage test - Answer: The temperature of the water or foam
solution must be in the range of 60degrees F - 80 degrees F.
,Foam samples selected for analysis must be representative of the foam produced by the nozzle as it
would be applied to the fire.
Expansion Ratio - Answer: If the solution temperature is higher than 70 degrees F, no correct applies.
If the temperature is lower than 70 degrees F, add 0.1 unit of expansion for each 3 degrees below 70
degrees F
Drainage Time - Answer: If the solution temperature is higher than 70 degrees F, add 0.1 minute for
each 3 degrees F above 70 degrees F. If the solution temperature is lower than 70 degrees F, subtract
0.1 minute for each 3 degrees F below 70 degrees F.
When performing Test method B of the expansion and drainage test, after obtaining the weight of the
foam solution in the container, the next step is to: - Answer: Obtain the equivalent 25% drainage volume
in milliliters
When performing the hand line nozzle, test you need to disregard any foam less than ______________
in depth when defining the edge of the pattern - Answer: 1/2 inch
Refractometer - Answer: To take readings using a refractometer, place a few drops of solution on the
refractometer prism, close the cover plate over the sample, and observe the scale reading at the dark
field intersection.
For 6% foam concentrates, the concentration should be between ______ % for the turret nozzles and
between _______% for hand line nozzles. - Answer: 5.5 and 7.0, 5.5 and 8.0
Records - Answer: Daily Fire Apparatus records
Weekly fire apparatus records
Periodic fire apparatus test records
Fuel, oil, and mileage records
Inspection records
, ARFF D-O Exam Questions and
Complete Solutions Graded A+
Daily Records - Answer: A remarks column for notes on specific problems
A line for the drivers signature (in case you have questions)
A line for the station capt. signature
A vehicle registration column where the apparatus is identified by a unit number
All of the following statements about items you must make sure of prior to performing the turret ground
pattern test are true except. - Answer: The water tank must be at least half full
X For premixed systems, the tank must be full with the premixed solution in the correct proportion for
normal fire fighting operations.
X The proportioner must be set for normal fire fighting operations
X The foam concentrate tank must be full with the type of foam concentrate that is used during actual
emergencies.
The steps for conducting the turret ground pattern test in the correct order. - Answer: Discharge the
foam onto a paved surface for 30 seconds at the specified pressure, in both the straight stream and fully
dispersed nozzle settings
Immediately after foam discharge has stopped, place markers, such as cones, around the outside
perimeter to preserve the identity of the foam pattern as it fell on the ground.
For purposed of defining the edge of the pattern, disregard any foam that is less than 1/2 inch deep
Pumping instruments
Hoselines
Roof and Bumper Turrets
Agent Tanks
Aux Winterization and/or Colling System
Fuel Tank
Weekly Checks - Answer: Pump and Intake Strainers
Pump Gearbox and packing glands
Pump pressure control device
Foam transfer pump
NFPA 414 - Answer: Standard for Aircraft Rescue and Fire-Fighting Vehicles
Accurate Test results for turret foam testing - Answer: Ensure that wind conditions are under 5mph
Turret nozzles are tilted upward to form a 30 degree angle with the horizontal to determine the
maximum discharge range.
How to perform the turret ground pattern test - Answer: Discharge the foam onto a paved surface for 30
seconds at the specified pressure in both the straight stream and fully dispersed nozzle settings.
Immediately after the foam discharge has stopped, place markers such as cones around the outside
perimeter to preserve the identity of the foam pattern as it fell on the ground. for purposes of defining
the edge of the pattern, disregard any foam that is less than one half inch deep.
Finally, measure the distance from the nozzle to the end of the effective foam pattern and plot the
results on graph paper
Prior to conducting the expansion and drainage test - Answer: The temperature of the water or foam
solution must be in the range of 60degrees F - 80 degrees F.
,Foam samples selected for analysis must be representative of the foam produced by the nozzle as it
would be applied to the fire.
Expansion Ratio - Answer: If the solution temperature is higher than 70 degrees F, no correct applies.
If the temperature is lower than 70 degrees F, add 0.1 unit of expansion for each 3 degrees below 70
degrees F
Drainage Time - Answer: If the solution temperature is higher than 70 degrees F, add 0.1 minute for
each 3 degrees F above 70 degrees F. If the solution temperature is lower than 70 degrees F, subtract
0.1 minute for each 3 degrees F below 70 degrees F.
When performing Test method B of the expansion and drainage test, after obtaining the weight of the
foam solution in the container, the next step is to: - Answer: Obtain the equivalent 25% drainage volume
in milliliters
When performing the hand line nozzle, test you need to disregard any foam less than ______________
in depth when defining the edge of the pattern - Answer: 1/2 inch
Refractometer - Answer: To take readings using a refractometer, place a few drops of solution on the
refractometer prism, close the cover plate over the sample, and observe the scale reading at the dark
field intersection.
For 6% foam concentrates, the concentration should be between ______ % for the turret nozzles and
between _______% for hand line nozzles. - Answer: 5.5 and 7.0, 5.5 and 8.0
Records - Answer: Daily Fire Apparatus records
Weekly fire apparatus records
Periodic fire apparatus test records
Fuel, oil, and mileage records
Inspection records
, ARFF D-O Exam Questions and
Complete Solutions Graded A+
Daily Records - Answer: A remarks column for notes on specific problems
A line for the drivers signature (in case you have questions)
A line for the station capt. signature
A vehicle registration column where the apparatus is identified by a unit number
All of the following statements about items you must make sure of prior to performing the turret ground
pattern test are true except. - Answer: The water tank must be at least half full
X For premixed systems, the tank must be full with the premixed solution in the correct proportion for
normal fire fighting operations.
X The proportioner must be set for normal fire fighting operations
X The foam concentrate tank must be full with the type of foam concentrate that is used during actual
emergencies.
The steps for conducting the turret ground pattern test in the correct order. - Answer: Discharge the
foam onto a paved surface for 30 seconds at the specified pressure, in both the straight stream and fully
dispersed nozzle settings
Immediately after foam discharge has stopped, place markers, such as cones, around the outside
perimeter to preserve the identity of the foam pattern as it fell on the ground.
For purposed of defining the edge of the pattern, disregard any foam that is less than 1/2 inch deep
