ARFF CDC'S QUESTIONS WITH VERIFIED ANSWERS

ARFF CDC'S QUESTIONS WITH VERIFIED
ANSWERS



When performing Test Method B of the Expansion and Drainage Test, after obtaining the w
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eight of the foam solution in the container, the next step is to: - ans-
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Obtain the equivalent 25% drainage volume in milliliters.
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When performing the hand line nozzle test, you need to disregard any foam less than_____
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___ in depth when defining the edge of the pattern. - ans-1/2 inch
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All of the following reasons for maintaining good records are TRUE EXCEPT: - ans-
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Records keep the public informed about apparatus availability and readiness.
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Identify THREE items commonly checked during the walk-
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around inspection of an apparatus. - ans-Fuel tanks Wheels and tires Mounted equipment
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The operation of a self-contained breathing apparatus (SCBA) is inspected during the: -
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ans-B) In-cab inspection
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Prior to conducting the expansion and drainage test, you must ensure that the temperature
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of the water or foam solution is no lower than: - ans-D) 60°
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All of the following statements about items you must make sure of prior to performing the tur
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ret ground pattern test are TRUE EXCEPT: - ans-A) The water tank must be at least 1/2 full
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The foam equipment test performed on ARFF apparatus that uses a refractometer is the: -
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ans-Foam solution-concentration test
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The hand line nozzle test: - ans-
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analyze affect foam patterns produced from each nozzle setting
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If you are doing a maintenance check on items such as pumpvalves, fluid levels, gauges, a
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nd findings on the: - ans-Daily fire apparatus record
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As part of the weekly inspection, the foam transfer pump should be operated for ______sec
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onds to check for proper operation. - ans-10
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The driver/ xz




operator of this apparatus did not meet NFPA 1500 driving requirements during this emerg
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ency response because he: - ans-Failed to bring the apparatus to a complete stop.
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, The fire department should have standard operating procedures for all of the following item
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s related to an ARFF appartus EXCEPT: - ans-Merging onto highways
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A liquid surge effect is defined as: - ans-
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The movement of liquid in an ARFF apparatus due to changes in speed or direction
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All of the following statements about an ARFF apparatus are TRUE EXCEPT: - ans-
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D) There is a new technology that maintains a constant apparatus weight with either full or e
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mpty water/foam tank xz xz




painted or lighted "X" indicates that a runway is: - ans-
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C) Closed to aircraft and vehicle operations
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Identify THREE TRUE statements about railroad crossings. - ans-
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B) An ARFF apparatus must come to a complete stop before entering a railroad crossing zo
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ne C) Check to your left and right before proceeding across the tracks E) Cross the tracks wi
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thout delay once both directions are clear
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When driving on a downgrade, what should your rpm gauge read? - ans-B) Below redline
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When performing the confined space turnaround exercise you will be penalized if you: -
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ans-Cross over the boundary lines
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Identify THREE TRUE statements about water: - ans- xz xz xz xz xz xz xz




B) Water can create an effective heat shield D) Water vaporizes quickly as it absorbs heat E
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) Water can be used to cool down wreckage or debris
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You're on the way to an incident involving a jet airplane at West Peninsula Airport. The initial
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report indicates that large quantities of fuel are present on the ramp. Identify ONE TRUE st
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atement concerning this incident: - ans- xz xz xz xz xz




The conditions are favorable for an outside ignition source to ignite the fuel.
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Low-
expansion foams used for extinguishing hydrocarbon fuels have an air to foam solution rati
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o of: - ans-B) Up to 20:1
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apparatus What application rate can your nozzle deliver at this incident? - ans-
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C)0.25 gpm/ft2 xz




This auxiliary agent may be used for equipment such as computers and electronic compon
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ents. - ans-B) Halogenated xz xz xz




The angle to achieve the greatest horizontal reach from a straight stream discharged from a
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turret is: - ans-30
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