ARFF - DRIVER OPERATOR MODULE 4 EXAM QUESTIONS AND ANSWERS
Knowledge Check#1
Identify THREE TRUE statements about water: - CORRECT ANSWER✅✅A. Water should be used on
electrical fires
B. Water can create an effective heat shield - X
C. Water should be used on hydrocarbon fuel fires
D. Water vaporizes quickly as it absorbs heat - X
E. Water can be used to cool down wreckage or debris - X
F. Water is equally effective at absorbing heat, whether it is a straight stream or a fog/dispersed stream
Knowledge Check #2
You're on the way to an incident involving a jet airplane at West Peninsula Airport. The initial report
indicates that large quantities of fuel are present on the ramp. Identify ONE TRUE statement concerning
this incident: - CORRECT ANSWER✅✅A. The conditions are favorable for an outside ignition source to
ignite the fuel. - Correct Answer
B. Since kerosene has a flash point at approximately 100 Degrees F, you need not be concerned about a
fuel spill as long as the ambient temperature is no greater than 80 Degrees F.
C. The conditions are not favorable for an outside ignition source to ignite the fuel.
D. You need to blanket the spill with foam only if it covers an area greater than 100 square feet.
Knowledge Check #3
Match each type of gauge with what it measures:
,1. Method by which foam creates a barrier between the fuel and fire
2. Product that results from mixing foam concentrate, water, and air
3. Device that introduces the foam concentrate to the water stream
4. Method by which foam lowers the temperature of the fire and surrounding surfaces.
5. Mixture of foam concentrate and water
6. Method by which foam "smothers" the fire and fuel vapors. - CORRECT ANSWER✅✅1. B
2. C
3. A
4. F
5. D
6. E
A. Foam Proportioner
B. Separating
C. Foam
D. Foam Solution
E. Suppression
F. Cooling
, Knowledge Check #4
Identify Three True Statements about foam concentrate storage. - CORRECT ANSWER✅✅A. Storage
containers are made of or are lined with plastic to resist the corrosiveness of foam concentrate - X
B. Foam should be stored in areas that provide a constant warm temperature near or above 80 degrees
F
C. Foam tenders transport foam concentrate to the ARFF apparatus - X
D. Different foam concentrates have different shelf lives - X
E. Foam concentrates, in general, cannot be used after five years of storage life
Knowledge Check #5
The foam concentrate that is most commonly used by ARFF driver/operators to extinguish fuel fire and
suppress vapors is: - CORRECT ANSWER✅✅A. Film forming fluoroprotein (FFFP)
B. Aqueous film forming foam (AFFF) - Correct Answer
C. High-expansion foam
D. Regular protein foam (PF)
Knowledge Check #6
Identify the correct proportions by selecting the appropriate proportions
1. 6 gallons of foam concentrate + 94 gallons of water
2. 2 gallons of foam concentrate + 99 gallons of water
Knowledge Check#1
Identify THREE TRUE statements about water: - CORRECT ANSWER✅✅A. Water should be used on
electrical fires
B. Water can create an effective heat shield - X
C. Water should be used on hydrocarbon fuel fires
D. Water vaporizes quickly as it absorbs heat - X
E. Water can be used to cool down wreckage or debris - X
F. Water is equally effective at absorbing heat, whether it is a straight stream or a fog/dispersed stream
Knowledge Check #2
You're on the way to an incident involving a jet airplane at West Peninsula Airport. The initial report
indicates that large quantities of fuel are present on the ramp. Identify ONE TRUE statement concerning
this incident: - CORRECT ANSWER✅✅A. The conditions are favorable for an outside ignition source to
ignite the fuel. - Correct Answer
B. Since kerosene has a flash point at approximately 100 Degrees F, you need not be concerned about a
fuel spill as long as the ambient temperature is no greater than 80 Degrees F.
C. The conditions are not favorable for an outside ignition source to ignite the fuel.
D. You need to blanket the spill with foam only if it covers an area greater than 100 square feet.
Knowledge Check #3
Match each type of gauge with what it measures:
,1. Method by which foam creates a barrier between the fuel and fire
2. Product that results from mixing foam concentrate, water, and air
3. Device that introduces the foam concentrate to the water stream
4. Method by which foam lowers the temperature of the fire and surrounding surfaces.
5. Mixture of foam concentrate and water
6. Method by which foam "smothers" the fire and fuel vapors. - CORRECT ANSWER✅✅1. B
2. C
3. A
4. F
5. D
6. E
A. Foam Proportioner
B. Separating
C. Foam
D. Foam Solution
E. Suppression
F. Cooling
, Knowledge Check #4
Identify Three True Statements about foam concentrate storage. - CORRECT ANSWER✅✅A. Storage
containers are made of or are lined with plastic to resist the corrosiveness of foam concentrate - X
B. Foam should be stored in areas that provide a constant warm temperature near or above 80 degrees
F
C. Foam tenders transport foam concentrate to the ARFF apparatus - X
D. Different foam concentrates have different shelf lives - X
E. Foam concentrates, in general, cannot be used after five years of storage life
Knowledge Check #5
The foam concentrate that is most commonly used by ARFF driver/operators to extinguish fuel fire and
suppress vapors is: - CORRECT ANSWER✅✅A. Film forming fluoroprotein (FFFP)
B. Aqueous film forming foam (AFFF) - Correct Answer
C. High-expansion foam
D. Regular protein foam (PF)
Knowledge Check #6
Identify the correct proportions by selecting the appropriate proportions
1. 6 gallons of foam concentrate + 94 gallons of water
2. 2 gallons of foam concentrate + 99 gallons of water
