F1 Maintenance, Inspection & Testing — practice test

High-yield F1 topics

The material that shows up year after year. If you're short on time, start here.

• The NFPA 1911 annual pump service test, cold. Three legs: 20 minutes at 150 psi net pump pressure and 100% of rated capacity, 10 minutes at 200 psi and 70%, 10 minutes at 250 psi and 50%. You record engine RPM at each leg and compare it to the certification plate from the original acceptance test - an RPM climb of roughly 10% or more at the same pressure and flow means a worn pump or an engine down on power, and that comparison is the whole point of the test.
• Dry vacuum test and priming. Pull 22 in. Hg with the pump and hard suction capped; it may drop no more than 10 in. Hg in 5 minutes. Priming: from draft the pump must prime and discharge water within 30 seconds for pumps rated up to 1500 gpm, 45 seconds above that. Draft setup is 10 ft of lift with 20 ft of hard suction. These four numbers show up constantly.
• Pressure control system test. At 150 psi and rated capacity, close the discharge slowly (3 to 10 seconds) and the pressure rise cannot exceed 30 psi - and it gets retested at a low-pressure, low-flow condition, which is where relief valves and governors actually fail. Know the difference between a relief valve dumping pressure and an electronic governor pulling engine speed; the symptoms and the fix are not the same.
• Tank-to-pump flow. The plumbing has to deliver 500 gpm until 80% of the tank is discharged (250 gpm on the smaller tanks). Failures here are mechanical and boring: a collapsed or kinked tank-to-pump line, a partially closed valve, a plugged tank sump screen, or a tank vent that cannot breathe fast enough - and the vent is the one techs forget.
• Aerial inspection versus testing. Annual is visual and operational: cables and cable tension, hydraulic drift, rotation bearing bolt torque, torque box and welds, waterway, interlocks, outriggers and pads. Non-destructive testing is on a 5-year cycle, performed by a qualified NDT technician (visual, ultrasonic, magnetic particle, liquid penetrant as applicable), and it is a separate event from the annual. Know which findings pull the truck out of service on the spot.
• Air brake and chassis PM numbers as they apply to apparatus that lives at or near GVWR. Governor cut-in and cut-out range, low-air warning at 60 psi, spring brakes auto-applying in the 20-45 psi range, static and applied leakage limits per minute. Tires too: replacement is driven by the DOT date-code age criterion, not tread depth alone, and by load rating for the axle weights the truck actually carries.

Where techs lose points on F1

Good technicians miss these — not from lack of skill, but because the question is built to catch them.

• NFPA 1901 versus NFPA 1911 (and now NFPA 1910, which consolidated them in the 2024 edition). Acceptance testing is 2 hours at 150 psi and 100% capacity. The annual in-service service test is 20 minutes. The questions read almost identically and the wrong duration is always sitting right there as a choice. Read for acceptance / delivery / new versus annual / in-service / service test.
• The vacuum test is a leak-rate test, not a hold test. 22 in. Hg is what you pull; 10 in. Hg in 5 minutes is what you are allowed to lose. Anyone who only ever heard 'it has to hold vacuum' picks wrong. Same class of trap on pressure control: the allowable rise is 30 psi, and 10 psi is the plausible-looking distractor.
• Assuming a DOT/FMCSA annual inspection satisfies the NFPA requirements. It does not, and the fire-apparatus exemptions from some federal rules do not exempt the truck from 1911/1910 inspection, testing, and retirement criteria. If a stem describes a roadworthiness inspection and then asks whether the pump or aerial is certified, the answer is no.
• Tech A / Tech B items where one tech is right about the procedure but wrong about the standard, or right about the number but wrong about the interval. Both-are-right is badly over-picked. Grade each statement against the standard on its own, not against whether it sounds like something a good tech would say in the bay.

A study plan that works for F1

Roughly two weeks of real preparation, in the order that actually builds on itself.

1. Days 1-4: Pump testing only. Write the service test legs, vacuum drop, prime times, pressure control rise, tank-to-pump flow, and draft setup from memory on a blank sheet until you can do it in under two minutes. It is the biggest block on the exam and it is pure recall.
2. Days 5-8: Aerials, foam, tanks, low-voltage. Split annual inspection items from 5-year NDT items into two columns - the exam lives on that boundary. Add foam proportioning accuracy testing and the 12-volt load management / minimum continuous electrical load requirements.
3. Days 9-11: Chassis and drivetrain PM plus documentation. Air system numbers, brake and tire criteria, fluid analysis intervals, cab tilt and occupant restraints, then the part everyone skips: what goes in the record, who signs it, how long it is kept, and what conditions put a truck out of service.
4. Days 12-14: Practice questions under time, then rework every miss back to the actual standard instead of to a gut feel. If you cannot say where a number comes from, you do not know it yet, and F1 will find that gap.

Sample F1 questions

Straight from the bank — answers highlighted, with the explanation underneath.