DOD ARFF CDC EXAM ALL QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS YEAR
QUESTION: The foams that are most commonly used for extinguishing fuel spills and
suppressing farmable vapors are - ANSWER-low expansion foam
QUESTION: Sparks from a friction or electrical components can increase the _________ of a fuel
spill - ANSWER-probability of ignition
QUESTION: dry powders are most effective for: - ANSWER-combustible metals
QUESTION: when using a 3% solution of foam concentrate, you must mix 3 gallons of foam
concentrate with: - ANSWER-97 gallons of water
QUESTION: halogenated agents do NOT work on: - ANSWER-self-oxidizing material
QUESTION: all of the following are primary uses of water and our operations except: - ANSWER-
extinguishing fuel spills and fuel fires
QUESTION: identify three characteristics of fuel spills that require blanketing with foam to
prevent the release of flammable vapors - ANSWER-more than 10 feet in any direction
continuous
50 ft² in an area
QUESTION: identify three low energy foam proportioning systems - ANSWER-batch mixing
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installed in-line enductor
balanced pressure
QUESTION: The process of getting water from static source to a fire pump is called - ANSWER-
drafting
Q; if a situation allows it is best to discard and extinguishing agent from - ANSWER-upwind
QUESTION: identify two true statements about firefighting operations when Ford firing
munitions are involved in the fire - ANSWER-assemble the designated withdrawal area with the
rear of the apparatus facing the designated crash point & sound the proper warning signal
QUESTION: The type of pattern that is made up of small particles of agent and is excellent at
absorbing heat and creating a cooling and penetrating foam blanket is a - ANSWER-dispersed
pattern
QUESTION: The foam application method used for an unignited pool of liquid fuel located
below a facility tank wall is the - ANSWER-bank down method
QUESTION: identify three true statements about turrets - ANSWER-they provide a large volume
of agent.
they can be used with aspirating and non-aspirating nozzles.
they are one of the most valuable tools in the fire control phase
QUESTION: identify three methods that can be used to resupply water - ANSWER-through the
hose intake connection
through the tank inlet
overhead-fill
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