F-03 Fire Extinguisher Requirements on Construction Sites 2

Question 1

What monthly inspection must the F-03 fire guard perform on fire extinguishers during their rounds?

Accepted Answer

Visual inspection checking: pressure gauge in green zone, no physical damage, safety pin present, tamper seal intact, extinguisher unobstructed and accessible

Answer

Monthly visual inspections by the fire guard cover pressure, physical condition, safety pin, tamper seal, and accessibility — no discharge testing is involved.

Question 2

What type of fire extinguisher is required when flammable liquids are used or stored on a construction floor?

Accepted Answer

Type ABC dry chemical or CO2 extinguisher rated for Class B flammable liquid fires

Answer

Flammable liquid hazards require Class B-rated extinguishers — ABC dry chemical or CO2 are appropriate choices.

Question 3

What should the F-03 fire guard do when a fire extinguisher's pressure gauge reads in the red zone?

Accepted Answer

Remove it from service immediately and replace it with a properly charged unit

Answer

A pressure gauge in the red zone indicates an over- or under-pressurized extinguisher that must be immediately removed from service.

Question 4

What type of extinguisher is specifically prohibited for use on electrical fires?

Accepted Answer

Water (Class A) extinguishers

Answer

Water is an electrical conductor — using a water extinguisher on an energized electrical fire creates shock hazard and must never be done.

Question 5

When should a fire extinguisher be hydrostatically tested, and what does this test verify?

Accepted 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

Answer

Hydrostatic testing at intervals specified by NFPA 10 verifies that the extinguisher cylinder can safely withstand the pressures of operation and will not rupture.

(F-03) Fire Guard F-03 Practice Test

(F-03) Fire Guard F-03 Practice Test

F-03 Fire Extinguisher Requirements on Construction Sites 2