NAA CAMT study materials
NAA CAMT study resources

NAA CAMT cheat sheet

NAA CAMT · Keep the key ideas within reach.

Quick reference

Work Order Processing and Resident Service

  • Work order priority tiers: emergency (immediate or same day), urgent (within 24 hours), routine (3-7 business days), and scheduled preventive maintenance.

  • Treat as emergencies: loss of heat or cooling in extreme weather, no domestic water, gas odor, sewage backup, active leak or flooding, exposed live wiring, and total lockout.

  • Non-emergency entry requires written notice, commonly 24 hours, except when the resident requests service or an emergency threatens life or property.

  • Log on every ticket: date and time received, resident name and unit, exact complaint, priority, assigned technician, parts used, labor hours, completion date, and resident sign-off.

  • Fair housing rule: response time and work quality must not vary by protected class; priority is set by the condition reported, never by who the resident is.

  • Preventive maintenance tickets are generated from a calendar or meter reading, not from a resident request, and are tracked separately from reactive work.

  • Response time = arrival time minus request-logged time; completion time = closed time minus request-logged time; the two are averaged and reported separately.

  • Close a ticket only after the repair is verified, documentation is complete, and a follow-up or callback within 24-48 hours is logged.

Quick reference

Interior and Exterior Maintenance and Repair

  • Drywall repair sequence: cut back to sound board, add backing, tape, apply three coats of joint compound with sanding between coats, then prime and paint.

  • Coverage estimate: one gallon of paint covers about 350-400 square feet per coat; gallons needed = wall area / 350 x number of coats.

  • Silicone or polyurethane sealant for exterior and wet-area joints; paintable acrylic caulk for interior joints that will be painted.

  • Deadbolt bolt throw must be at least 1 inch, with 3-inch screws through the strike plate reaching the wall framing.

  • Keep siding 6-8 inches above finished grade and maintain soil slope away from the foundation to prevent rot and termite entry.

  • Downspouts discharge 3-5 feet from the foundation; clean gutters and downspouts at least twice a year.

  • Asphalt shingles require a roof slope of at least 2:12; lower slopes need membrane or specialized underlayment.

  • Seal asphalt cracks and re-sealcoat every 2-3 years; patch concrete walks when cracks exceed 1/4 inch or edges create a trip hazard.

Quick reference

Plumbing Systems

  • Normal static supply pressure is 40-80 psi; install a pressure-reducing valve when pressure exceeds 80 psi.

  • T&P relief valve opens at 150 psi or 210 degrees Fahrenheit; the discharge pipe must end within 6 inches of the floor and must never be capped or plugged.

  • Set storage water heaters to 120 degrees Fahrenheit to limit scalding and standby loss; higher settings require a tempering (mixing) valve.

  • The P-trap water seal is 2-4 inches deep; a dry trap lets sewer gas into the unit, so refill traps in vacant units.

  • Freeze protection: disconnect hoses, insulate exposed piping, and maintain at least 55 degrees Fahrenheit in unoccupied units.

  • Meter leak test: shut off every fixture and appliance, confirm no flow, then watch the low-flow indicator; movement confirms a supply leak.

  • A running toilet from a leaking flapper or fill valve can waste hundreds of gallons a day; verify by shutting the angle stop and watching the tank.

  • Sewer backups are cleared from the building cleanout with a cable or auger; a recurring backup at one fixture points to a branch clog, at multiple fixtures to the main.

Quick reference

Electrical Systems and Appliances

  • Breaker-to-conductor rule: 15 A protects 14 AWG copper, 20 A protects 12 AWG, 30 A protects 10 AWG; never upsize the breaker above the conductor rating.

  • GFCI protection is required in bathrooms, kitchens, laundry rooms, garages, outdoors, and at receptacles within 6 feet of a sink.

  • AFCI protection is required on branch circuits serving bedrooms in most jurisdictions.

  • A short circuit is an unintended hot-to-neutral connection; a ground fault is hot-to-ground current leakage, which is the imbalance GFCI devices sense.

  • Service sequence: lockout/tagout at the disconnect, verify de-energized with a tester, perform the repair, and restore power only after the work is complete.

  • Class C extinguishers (carbon dioxide or dry chemical) are the only rated type for energized electrical fires; water is never applied.

  • Appliance diagnosis order: confirm supply voltage at the receptacle, then the cord and plug, then the thermostat or control, then the component.

  • Clean refrigerator condenser coils every 6-12 months; dust buildup raises energy use and shortens compressor life.

Quick reference

Heating, Ventilation, and Air Conditioning (HVAC) and Safety

  • Filters: change 1-inch filters every 1-3 months; use MERV 8-13 for residential systems and confirm the blower is rated for the added static pressure.

  • Refrigerant charging check: target 8-12 degrees Fahrenheit superheat on a fixed-orifice system, or 8-12 degrees Fahrenheit subcooling on a TXV system.

  • A cracked heat exchanger can release carbon monoxide into supply air; shut the furnace down and tag it out of service.

  • Gas odor response: create no ignition source, shut the gas valve, ventilate, evacuate, and call the utility.

  • Thermostat setback of 7-10 degrees Fahrenheit for 8 hours a day saves roughly 10 percent on heating and cooling energy.

  • Condensate drains need a trap and continuous slope to the discharge; algae clogs are cleared by flushing and adding a pan treatment tablet.

  • Install CO alarms near sleeping areas and on each level; install smoke alarms on each level, inside each bedroom, and outside each sleeping area.

  • Ladder safety rule: set the base out 1 foot for every 4 feet of working height and maintain three points of contact.