CDCs ARFF Exam Questions Answered And Graded 2026/27 | A+ Rated | 100% Verified

Daily checks for ARFF apparatus - CORRECT ANSWER Pump drive control Pumping instruments Hoselines Roof and bumper turrets (if applicable) Agent tanks Auxiliary winterization and/or cooling system Fuel tank Auxiliary fire suppression system (if applicable) T/F: Belts should have proper tension of 1/2 to 3/4 inch deflection at the midpoint - CORRECT ANSWER True Coolant in the overflow reservoir should be halfway between the ___________ and _______ level for your apparatus - CORRECT ANSWER Maximum and minimym T/F: An air filter restriction indicator determines if the air filter needs to be changed - CORRECT ANSWER True T/F: eye and hand protection should be worn when cleaning terminals - CORRECT ANSWER True Weekly checks for ARFF apparatus - CORRECT ANSWER Pump and intake strainers Pump gearbox and packing glands Pump pressure control device Foam transfer pump Types of test for foams - CORRECT ANSWER Foam solution-concentration test Turret ground pattern test Expansion and drainage test Hand line nozzle test NFPA 414 - CORRECT ANSWER Standard for Aircraft Rescue and Fire-Fighting Vehicles Foam solution concentration test - CORRECT ANSWER For 6% foam concentrates, the concentration should be between 5.5% and 7.0% for turret nozzles and between 5.5% and 8.0% for hand line nozzles For 3% foam concentrates, the concentration should be between 2.8% and 3.5% for turret nozzles and between 2.8% and 4.0% for hand line nozzles. Refractometer - CORRECT ANSWER Used in foam solution concentration test that provides immediate reading Determining Sample concentrations equation: - CORRECT ANSWER Rs - Rw % Foam Solution= ___________ X100 Rc - Rw Requirements to perform accurate turret ground tests - CORRECT ANSWER Wind conditions are les than 5 mph Turret nozzles are tilted upward to form a 30 degree angle with the horizontal to determine the maximum discharge range Prior to conducting the expansion and drainage test, the water or foam solution must be in the range of _____________ - CORRECT ANSWER 60 degrees F to 80 degrees F Expansion ratio for foam requirements: - CORRECT ANSWER If the solution temperature is higher than 70 degrees, no correct applies If the temperature is lower than 70 degrees, add 0.1 unit of expansion for each 3 degrees F below 70 degrees F Drainage time for foam: - CORRECT ANSWER If solution temperature is higher than 70 degrees, add 0.1 minute for each 3 degree above 70 degrees F. If the solution temperature is lower than 70 degrees F, subtract 0.1 minute for each 3 degree below 70 degrees When performing Test Method B of the Expansion and Drainage Test, after obtaining the weight of the foam solution in the container, the next step is to: - CORRECT ANSWER Obtain the equivalent 25% drainage volume in milimeters Hand Line Nozzle Test procedures: - CORRECT ANSWER 1. Discharge hand line foam nozzles onto a paved surface. Tilt hand line nozzles upward to a 30 degree angle with the horizontal 2. Place markers around the outside parameter 3. Disregard any foam less than 1/2 inch deep 4. Plot the distances between markers on graph paper. 5. Measure the distance from the nozzle to the end of the effective foam pattern. 6. Establish, measure and record the foam patterns from both the straight stream and the fully dispersed nozzle settings When performing the hand line nozzle test, you need to disregard any foam less than _____ in depth when defining the edge of the pattern. - CORRECT ANSWER 1/2 inch NFPA 1901 - CORRECT ANSWER Standard for Automotive Fire Apparatus Reasons for maintaining good records are: - CORRECT ANSWER Records keep everyone on the team informed about equipment conditions Help determine whether equipment should be repaired/replaced Support equipment warranty claims NOT for keeping the public informed about apparatus availability and readiness Daily Records: - CORRECT ANSWER Used for maintenance checks that can affect daily apparatus performance such as: Fluid levels Tires Brakes Instruments and gauges Batteries Pump vavles Periodic records keep track of: - CORRECT ANSWER Changes in equipment or materials on a 4 to 12 month basis Power saws, generators, lubrication, cooling system hoses, flushing the pump and tank Mandatory annual service tests Can also be used to track apparatus performance measures such as safety inspections Fire apparatus test records - CORRECT ANSWER Used to evaluate overall performance of ARFF apparatus. Fuel, Oil, and Mileage Records - CORRECT ANSWER Important both for tracking engine performance based on fuel consumption and for ensuring that oil and oil filters have been changed. Weekly records: - CORRECT ANSWER Same as daily records, weekly records should capture information about apparatus systems that may only need to be inspected on a weekly basis Reasons for keeping up-to-date and accurate fire apparatus records: - CORRECT ANSWER Keep everyone on the team informed about equipment conditions Support equipment warranty claims Provide evidence during equipment accident investigations Can be used to help determine whether equipment should be repaired or replaced Inspection item most associated with: - CORRECT ANSWER Air filter restriction indicator and Engine Compartment SCBA and Walk-around Pump flow meter and Weekly Platforms and rails and In cab Weight of ARFF apparatus: - CORRECT ANSWER 3,000 gallons = 80,000 pounds 1,500 gallons = 35,000 pounds The steering wheel should not have excessive play more than ____ degrees in either direction - CORRECT ANSWER 10 Smaller apparatus will have a (tighter or wider) turning radius than a larger apparatus. - CORRECT ANSWER Tighter Two types of braking systems in an ARFF apparatus: - CORRECT ANSWER Air brakes Hydraulic brakes Automatic Braking Systems - CORRECT ANSWER Engine brakes or other types of retarding devices that assist in braking. The engine brake and retarder are activated when pressure is released from the accelerator Braking Distance - CORRECT ANSWER Braking distance is the distance an apparatus travels from the time the brakes are applied until the apparatus comes to a complete stop Reaction Distance - CORRECT ANSWER The distance an apparatus travels while a driver/operator transfers his/her foot from the accelerator to the brake pedal after perceiving the need to stop Total Stopping Distance - CORRECT ANSWER The sum of the reaction distance and the braking distance Centrifugal force is ____________ when driving large vehicles such as an ARFF apparatus, due to increased weight, height and width. - CORRECT ANSWER Greater Lugging - CORRECT ANSWER Occurs when the throttle is applied while the transmission is in too high a gear for a given set of conditions Correct steps for a right turn - CORRECT ANSWER Turn right signal on Check side view mirror Move into right lane Ensure side street is clear Turn right Sight of control - CORRECT ANSWER The maximum distance in which you can visibly see an obstruction and safely stop the apparatus in time Where do spotters stand to help back up the apparatus - CORRECT ANSWER Back left and front right When performing the alley dock exercise, you CANNOT - CORRECT ANSWER Stop and pull forward Aircraft fuel spills should be blanketed with foam to prevent the release of flammable vapors if they are what? - CORRECT ANSWER 1) More than 10FT in any direction 2) 50 square feet in area 3) continuous Class B foam concentrates are normally used at a _-_% concentration hydrocarbons and _-_% on polar solvents. - CORRECT ANSWER 1-3% ; 3-6% Class A foam concentrates are mixed in what proportions? - CORRECT ANSWER 0.1, 10% Shelf life of class A foam - CORRECT ANSWER 20-25 years Shelf life of class B foam - CORRECT ANSWER 10 years High expansion foam - CORRECT ANSWER 200:1 to 1000:1 Medium expansion foam - CORRECT ANSWER 20:1 to 200:1 Low expansion foam ratio - CORRECT ANSWER 20:1 auxiliary agents - CORRECT ANSWER dry chem and clean agents which Auxiliary agent may be used for equipment such as computers, and electronic components - CORRECT ANSWER Halogenated This agent is not effective on "self-oxidizing" materials - CORRECT ANSWER Halogenated Agent that is compatible with AFFF but doesn't work well with protein foams - CORRECT ANSWER Dry Chemical Resupply operations from a hydrant - CORRECT ANSWER Select best hydrant considering location and size of water main Properly position and secure apparatus, and chick wheels Engage pump Pump at maximum capacity Open water tank lid (if applicable) Connect ARFF apparatus to hydrant Open hydrant and intake valve (if applicable) Pump at maximum rated capacity Resupply Operation from an apparatus - CORRECT ANSWER Position ARFF apparatus Discharge at maximum capacity Coordinate the positioning of the resupply apparatus with its driver/operator Continue to pump at the maximum capacity while the resupply line from the resupply apparatus is con