CFI Portable Fire Extinguishers & Suppression Equipment 3

Question 1

NFPA 10 classifies occupancy hazards into three levels. Which designation applies to an office building?

Accepted Answer

Light hazard

Answer

Office buildings are classified as light-hazard occupancies under NFPA 10 because they have low quantities of Class A combustibles and minimal flammable liquids.

Question 2

A wheeled fire extinguisher with an agent weight greater than 40 lbs is considered what type under NFPA 10?

Accepted Answer

Wheeled (transportable) extinguisher

Answer

NFPA 10 classifies extinguishers with gross weights exceeding 40 lbs that are mounted on wheels as wheeled or transportable extinguishers.

Question 3

An AFFF (aqueous film-forming foam) extinguisher is best suited for which fire classification?

Accepted Answer

Class A and Class B

Answer

AFFF extinguishers are rated for both Class A ordinary combustible fires and Class B flammable liquid fires due to their water content and foam film-forming properties.

Question 4

According to NFPA 10, which of the following is required to be checked during a monthly visual inspection of a portable fire extinguisher?

Accepted Answer

Pressure gauge reading and tamper seal integrity

Answer

Monthly inspections per NFPA 10 require checking that the extinguisher is in its designated location, the pressure gauge reads in the operable range, and the tamper seal is intact.

Question 5

A halon 1211 extinguisher is discovered during an inspection. What should the inspector document regarding this unit?

Accepted Answer

Existing units may remain in service but cannot be recharged after discharge

Answer

Halon production was banned under the Clean Air Act, but existing halon extinguishers may remain in service; however, once discharged they cannot be legally recharged with virgin halon.

(CFI) Certified Fire Inspector Practice Test

(CFI) Certified Fire Inspector Practice Test

CFI Portable Fire Extinguishers & Suppression Equipment 3