ARFF truck foam equipment tests

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foam equipment test should be conducted how often?: annualy
foam equipment test consist of what?: 1)foam solution-concentration test
2)turret ground pattern test
3)expansion and drainage test
4)handline nozzle test
what general preparations must you perform prior to the foam solution-concentration test, turret ground pattern test, and expansion and drainage test?: 1)that the apparatus water and foam systems are operational
2)the presure and flow characteristics of each apparatus outlet
3)that the piping systems have been flushed
how is a water contamination of the tank concentrate found?: by comparing it with a virgin sample
what is determined by the foam solution concentration test?: the concentration of the foam solution
at 6% foam concentrates what should the concetration be for turret nozzles?: between 5.5% and 7.0%
for 6% foam concentrates what should the conentration be for handline nozzles?: between 5.5% and 8.0%
for 3% foam concentrates what should the concentration be for turret nozzles?: between 2.8% and 3.5%
for 3% foam concentrates what should the concentration be for handline nozzles?: 2.8% and 4.0%
to determine the concentration of the foam on a foam solution-concentration test what device is used?: a refractometer
what is the formula for the % foam solution?: Rs-Rw/Rc-Rw X 100

Rw=water sample reading
Rs=foam solution reading
Rc=foam concentrate reading
what is the turret ground pattern test for?: to analyze the distrubtion pattern of foam being discharged from foam equipment and max range attainable by the turret nozzle
what should you make sure of prior to performing your turret ground pattern test?: 1)the water tank is full
2)the foam concentrate tank is full with the type of foam concentrate that is used during actual emergencies
3)the porportioner is set for normal firefighting operations
4)for premixed systems, the tank is full with the premixed soultion in the correct proportion for normal fire fighting operations
to guarantee accurate test results for the turret ground pattern test what are some things to consider?: 1)wind conditions are under 5mph
2)turret nozzles are titled upward to form a 30 degree angle with the horizontal to determine the max discharge range
on turret ground pattern test how long should you run the agent?: 30 seconds
what must the temperature range be in for the water or foam solution prior to conducting the expansion and drainage test?: 60*F-80*F
in expansion ratio, if the solution temperature is higher than 70*F is correction applied?: no correction applies
in expansion ratio, if the temperature is lower than 70*F what corrections is applied?: add 0.1 unit of expansion for each 3*F below 70*F
in drainage time, if the solution temperature is higher than 70*F what should be done?: add 0.1 minute to each 3*F above 70*F
in drainage time, if the solution temperaure is lower than 70*F what should be done?: subract 0.1 minute for each 3*F below 70*F
how many differe testing methods are used to analyze foam samples?: two
what is the expansion formula for test method A?: 1000ML/(full weight in grams)-(empty weight in grams)
what is the formula for expansion using the test method B?: 1600ML/(full weight in grams)-(empty weight in grams)
when performing Test Method B of the expansion and drainage test, after obtaining the weight of the foam solution in the container, what is the next step?: obtain the equivalent 25% drainage volume in milliters
what are the minimum expansion ratio for AFFF or FFFP-air-aspirated?: 5:1
what is the minimum expasion ratio for AFFF or FFFP-non-aspirated?: 3:1
what is the purpose of the handline nozzle test?: analyze effective foam patterns produced from each nozzle setting
when performing the handline nozzle test you need to disregard any foam less than what depth when defining the edge of the pattern?: 1/2 inch
what type of record can be used as documentation when examining ways to improve crew efficiency and developing or justifying department budgets?: periodic fire apparatus records
fire apparatus test records should include what type of specific information about the apparatus being tested?: 1)its class
2)model
3)serial #
4)pump type
5)pump make
6)primer type
what type of record is the gearbox?: weekly record
what type of record is the throttle?: test record

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