ARFF DRIVER - OPERATOR EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS
What are the three advantages of the balance pressure foam proportioning system? -
Answer- • There is no water intake pressure limitations
• Water and foam can simultaneously be discharged in separate outlets
• Various percentages of foam solution can be discharged from multiple discharge
outlets
What are three true statements about Dry chemical? - Answer- • They are useful on
running fuel fires and 3D fires
• They are not effective for preventing flash back
• They are usually applied through hand lines
55. What are two types of low energy foam proportioning systems installed? - Answer- •
Direct injection
• Balance pressure
What is the class B foam mixture? - Answer- • 1 to 6 percent
If the candidate fails the performance test they must wait? - Answer- • 90 days
The key to a successful performance test is? - Answer- To ensure fairness and
consistency
What are the fire chief duties during the performance test? - Answer- • Ensure all the
quality of the performance test and enforces the procedures
• Ensure candidates has past written test
• Provide name and point of contact at least 10 calendar days prior
What are the duties of the lead evaluator? - Answer- • Ensure all equipment in good
condition
• Ensure performance test is conducted in a fair, organized, and effective manner.
• Reviews critical, major, and general areas
What are the three items to be checked when inspecting the wheels and tires? -
Answer- • Broken studs or clamps
• Tire tread
• Valve stem
, If you are inspecting wiper blades, wind shield, lights, and steering? - Answer- • Front
of apparatus
Air cylinders should read? - Answer- 4500 psi
For 6 percent foam concentrates the concentration should be between ______ percent
for turret nozzles and between _______ for hand line nozzles? - Answer- • 5.5 to 7.00
for turrets
• 5.5 to 8.0 for hand line nozzles
CHECKED D
CHECKED DAILY - Answer- • Pump drive control
• Pumping instruments
• Hose line
• Turrets
• Agent tanks
• Auxiliary winterization/cooling
• Auxiliary fire suppression system
• Breathing air systems
• Fuel tanks
CHECKED WEEKLY - Answer- • Pump and intake strainers
• Pump gearbox and packing glands
• Pump pressure control device
• Foam transfer pump
To insure an accurate test ensure the wind is? - Answer- • Under 5 MPH
Expansion ratio - Answer- solution temp is higher than 70 degrees no correction applies
if temp is lower than 70 degrees add oil unit of expansion for each 3 degrees below 70.
Drainage time - Answer- if the solution is higher than 70 degrees add oil minutes for
each 3 degrees above 70. If lower than 70 degree subtract oil minutes for each 3
degrees below 70.
Ground pattern test steps - Answer- • Discharge foam
• Place marker
• Disregard less than ½ inch thick
• Plot/ measure
Foam equipment test matches - Answer- • Hand line nozzle- foam nozzle settings
• Foam solution concentrate- clean plastic or glass containers
• Expansion and drainage-has two different test methods
• Turret ground pattern-winds under 5 mph
What foam test uses a refract meter? - Answer- • Foam solution concentrate test
QUESTIONS WITH 100% CORRECT
ANSWERS
What are the three advantages of the balance pressure foam proportioning system? -
Answer- • There is no water intake pressure limitations
• Water and foam can simultaneously be discharged in separate outlets
• Various percentages of foam solution can be discharged from multiple discharge
outlets
What are three true statements about Dry chemical? - Answer- • They are useful on
running fuel fires and 3D fires
• They are not effective for preventing flash back
• They are usually applied through hand lines
55. What are two types of low energy foam proportioning systems installed? - Answer- •
Direct injection
• Balance pressure
What is the class B foam mixture? - Answer- • 1 to 6 percent
If the candidate fails the performance test they must wait? - Answer- • 90 days
The key to a successful performance test is? - Answer- To ensure fairness and
consistency
What are the fire chief duties during the performance test? - Answer- • Ensure all the
quality of the performance test and enforces the procedures
• Ensure candidates has past written test
• Provide name and point of contact at least 10 calendar days prior
What are the duties of the lead evaluator? - Answer- • Ensure all equipment in good
condition
• Ensure performance test is conducted in a fair, organized, and effective manner.
• Reviews critical, major, and general areas
What are the three items to be checked when inspecting the wheels and tires? -
Answer- • Broken studs or clamps
• Tire tread
• Valve stem
, If you are inspecting wiper blades, wind shield, lights, and steering? - Answer- • Front
of apparatus
Air cylinders should read? - Answer- 4500 psi
For 6 percent foam concentrates the concentration should be between ______ percent
for turret nozzles and between _______ for hand line nozzles? - Answer- • 5.5 to 7.00
for turrets
• 5.5 to 8.0 for hand line nozzles
CHECKED D
CHECKED DAILY - Answer- • Pump drive control
• Pumping instruments
• Hose line
• Turrets
• Agent tanks
• Auxiliary winterization/cooling
• Auxiliary fire suppression system
• Breathing air systems
• Fuel tanks
CHECKED WEEKLY - Answer- • Pump and intake strainers
• Pump gearbox and packing glands
• Pump pressure control device
• Foam transfer pump
To insure an accurate test ensure the wind is? - Answer- • Under 5 MPH
Expansion ratio - Answer- solution temp is higher than 70 degrees no correction applies
if temp is lower than 70 degrees add oil unit of expansion for each 3 degrees below 70.
Drainage time - Answer- if the solution is higher than 70 degrees add oil minutes for
each 3 degrees above 70. If lower than 70 degree subtract oil minutes for each 3
degrees below 70.
Ground pattern test steps - Answer- • Discharge foam
• Place marker
• Disregard less than ½ inch thick
• Plot/ measure
Foam equipment test matches - Answer- • Hand line nozzle- foam nozzle settings
• Foam solution concentrate- clean plastic or glass containers
• Expansion and drainage-has two different test methods
• Turret ground pattern-winds under 5 mph
What foam test uses a refract meter? - Answer- • Foam solution concentrate test
