Maintenance Protocols Flashcards
7 cards from real CBI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Maintenance Protocols flashcards as text
How often should a standard 1-inch pleated HVAC filter in a typical residence generally be replaced?
Answer: Every 1–3 months
Most manufacturers recommend replacing 1-inch pleated filters every 1–3 months, depending on occupancy, pets, and dust levels.
According to NFPA 72, residential smoke alarms should be replaced at what maximum age?
Answer: 10 years from manufacture
NFPA 72 requires smoke alarms to be replaced no more than 10 years from the manufacture date printed on the unit.
What is the main reason for periodically flushing a tank-type water heater?
Answer: To remove accumulated sediment from the tank bottom
Annual flushing removes mineral sediment that reduces efficiency, causes rumbling noises, and shortens tank life.
What is the generally recommended minimum frequency for cleaning residential gutters?
Answer: Twice a year, typically spring and fall
Gutters should be cleaned at least twice yearly, and more often near trees, so water drains away from the structure.
How often should homeowners test smoke alarms using the test button?
Answer: Monthly
Smoke alarm manufacturers and NFPA recommend pressing the test button at least monthly.
Why should clothes dryer exhaust ducts be cleaned at least annually?
Answer: To prevent lint buildup that creates a fire hazard
Lint buildup in dryer ducts restricts airflow and is a leading cause of residential dryer fires.
An inspector notes cracked, separated caulk around a bathtub. What is the primary maintenance concern?
Answer: Water intrusion damaging the subfloor and wall framing
Failed caulk lets water get behind surrounds and into framing, causing rot and mold.