Pump Ops Chap 2 Flashcards
What agency case report highlights the fatal consequences of failing to chock wheels during apparatus maintenance?
NIOSH # F2010-37
What policy must be enforced when performing apparatus repair to prevent unintentional movement?
Chocking wheels or otherwise preventing unintentional movement of apparatus undergoing repair or maintenance.
What must personnel not engaged in maintenance do according to NIOSH recommendations?
Personnel not engaged in maintenance or repair activities should be excluded from the work area.
What are driver/operators required to do per NFPA® 1002?
Driver/operators must be skilled in certain maintenance tasks.
What is the goal of preventive maintenance?
Eliminate unexpected and catastrophic failures that may endanger firefighters and the public.
Who provides a basis to train and certify fire apparatus mechanics and maintenance officers?
NFPA® 1071, Standard for Emergency Vehicle Technician Professional Qualifications.
What must be documented, transmitted, and followed up after apparatus inspection reveals defects?
The defect must be documented, reported to a supervisor, and followed up depending on the severity per AHJ policy.
What tire requirement is mandated by NFPA® 1911?
All tires must be replaced every seven years, regardless of condition.
What critical inspection must occur when inspecting the steering system?
Check steering wheel play; standard is no more than 10 degrees in either direction.
What indicates the apparatus may need service during air brake checks?
If the engine must run longer to build air pressure.
When are apparatus inspections required in most departments?
At the beginning of each tour of duty, weekly, or monthly depending on department SOPs.
What should be used to ensure uniform and complete apparatus inspections?
Inspection checklist created by the Authority Having Jurisdiction (AHJ).
What may apparatus maintenance records be used for in legal or repair situations?
Warranty claims, accident investigations, and deciding whether to repair or replace apparatus.
What are the consequences of excessive steering wheel play?
May indicate serious issues leading to loss of control during emergency or routine driving.
What is defined as the maximum safe operating weight for an apparatus?
Gross Vehicle Weight Rating (GVWR).
What cleaning equipment is recommended during first six months of apparatus use?
Garden hose without nozzle to reduce debris damage to uncured paint.
What document outlines procedures for walk-around inspections?
Skill Sheet 2-2.
What are the effects of mixing radial and bias-ply tires?
It is never acceptable to mix radial tires with bias-ply tires.
What system prevents overload of the vehicle’s electrical generation system?
Electrical Load Management System.
What function does a Load Monitor perform?
Watches for overload and shuts down less important equipment (load shedding).
How is steering wheel play measured on a 20-inch wheel?
Max play is 2 inches (50 mm) in either direction.
What hazard is caused by overcleaning with steam or high-pressure spray?
May remove lubrication or damage wiring/connectors.
What must be done before lifting a tilt cab?
Ensure adequate vertical clearance, secure loose items, and verify latch mechanisms.
What minimum brake system tests are outlined by NFPA® 1911?
Air loss, air compressor buildup, air warning, and parking brake activation tests.
When must brake warning light and buzzer activate during air brake test?
Before 60 psi (420 kPa).
What system prevents operation of nonessential air devices if pressure drops below 80 psi?
Air Pressure Protection Valve.
What is the function of automatic slack adjusters?
Connect activation pads to brake pads and maintain proper brake adjustment.
What should be done if slack adjusters don’t meet specifications?
Apparatus must not be driven until repaired by a certified mechanic.
What information must be checked when inspecting engine belts?
Tightness, wear, and proper adjustment using manual feel.
What should be done if apparatus battery requires frequent charging?
Report to department mechanic so corrective action can be taken.
What is required when checking battery terminals?
Tighten connections, clean corrosion with baking soda/water, dry battery tops.
What is the correct way to perform battery charging?
Follow manufacturer instructions, wear goggles, gloves, and ventilate the area.
What PPE is required when servicing batteries?
Safety goggles and acid-resistant gloves.
How must load variances be measured per NFPA® 1901/1911?
Side-to-side variance in weight should not exceed 7%.
What should be inspected for rust and debris in snow zones?
Undercarriage, suspension, electrical components, and brake parts.
When should apparatus fuel tanks be topped off?
Store apparatus with a minimum fuel level as required by SOPs.
What can diesel exhaust leaks during regeneration cause?
Ignite nearby components due to high exhaust temperatures.
What is the danger of fuel injector residue?
It can gather dirt and render components inoperable despite having no moving parts.
What precautions are necessary during engine compartment inspections?
Never rely solely on gauges; visually inspect all fluid levels.
How should window glass be cleaned?
With warm soapy water or commercial cleaner using soft cloths or paper towels.
What is the definition of a Walk-Around Inspection?
Starting at one point and continuing clockwise or counterclockwise around the vehicle.
What is the standard pressure drop limit for straight-chassis air brake test?
3 psi (20 kPa) max drop after 1 minute with engine off.
How much time should it take to build air pressure to 85–100 psi at full RPM?
45 seconds.
How much vacuum loss is acceptable in a hard intake hose service test?
No more than 10 inches (35 kPa) in 5 minutes.
What does a relief valve test involve?
Throttle engine above relief setting, engage valve, monitor pressure, and adjust as needed.
What is the definition of Free Play?
The distance a clutch pedal travels before the throw-out bearing contacts the release fingers.
What items are included in Skill Sheet 2-3?
Performing an in-cab operational inspection.
What must be done if rear dual tires contact each other or apparatus?
Remove from service immediately.
What should be done after using water from the onboard tank?
Reservice vehicle and refill the tank.
What is the final step of any inspection procedure?
Document the inspection, record actions, and report deficiencies per local policy.
