Fire Extinguisher Requirements on Construction Sites Flashcards
6 cards from real F-03 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Fire Extinguisher Requirements on Construction Sites flashcards as text
What monthly inspection must the F-03 fire guard perform on fire extinguishers during their rounds?
Answer: Visual inspection checking: pressure gauge in green zone, no physical damage, safety pin present, tamper seal intact, extinguisher unobstructed and accessible
Monthly visual inspections by the fire guard cover pressure, physical condition, safety pin, tamper seal, and accessibility — no discharge testing is involved.
What type of fire extinguisher is required when flammable liquids are used or stored on a construction floor?
Answer: Type ABC dry chemical or CO2 extinguisher rated for Class B flammable liquid fires
Flammable liquid hazards require Class B-rated extinguishers — ABC dry chemical or CO2 are appropriate choices.
What should the F-03 fire guard do when a fire extinguisher's pressure gauge reads in the red zone?
Answer: Remove it from service immediately and replace it with a properly charged unit
A pressure gauge in the red zone indicates an over- or under-pressurized extinguisher that must be immediately removed from service.
What type of extinguisher is specifically prohibited for use on electrical fires?
Answer: Water (Class A) extinguishers
Water is an electrical conductor — using a water extinguisher on an energized electrical fire creates shock hazard and must never be done.
When should a fire extinguisher be hydrostatically tested, and what does this test verify?
Answer: At intervals specified by NFPA 10 (every 5 or 12 years depending on type) to verify the cylinder can withstand operational pressure without failure
Hydrostatic testing at intervals specified by NFPA 10 verifies that the extinguisher cylinder can safely withstand the pressures of operation and will not rupture.
What is the difference between a stored-pressure extinguisher and a cartridge-operated extinguisher, and why does it matter for construction site use?
Answer: Stored-pressure extinguishers have agent and propellant pre-mixed under pressure; cartridge types have a separate CO2 cartridge that is pierced upon operation — cartridge types are easier to partially use and field-recharge but require more inspection
Stored-pressure and cartridge types differ in propellant storage — cartridge types allow field recharge and partial use, which is relevant for high-risk construction environments.