NFPA NFPA 10 Portable Fire Extinguishers 2

Question 1

Under NFPA 10, what is the maximum travel distance to a Class B extinguisher in a low-hazard occupancy?

Accepted Answer

50 feet

Answer

NFPA 10 limits travel distance to a Class B extinguisher in low-hazard areas to 50 feet.

Question 2

According to NFPA 10, what type of fire extinguisher is NOT acceptable for use on Class C (energized electrical) fires?

Accepted Answer

Water extinguisher

Answer

NFPA 10 prohibits the use of water extinguishers on Class C fires because water conducts electricity and creates an electrocution hazard.

Question 3

Under NFPA 10, which extinguishing agent requires a 12-year hydrostatic test for its cylinder?

Accepted Answer

CO2 (high pressure)

Answer

NFPA 10 requires CO2 extinguisher cylinders, as high-pressure vessels, to undergo hydrostatic testing every 5 years.

Question 4

According to NFPA 10, what information must appear on the tag attached to a fire extinguisher after annual maintenance?

Accepted Answer

Date of service, servicing company, and technician initials or ID

Answer

NFPA 10 requires the maintenance tag to show the date of service, the name of the servicing organization, and the technician's identification.

Question 5

Under NFPA 10, what minimum rating is required for a Class B extinguisher protecting a high-hazard flammable liquid area with a 25-square-foot maximum fire size?

Accepted Answer

10-B

Answer

NFPA 10 tables require at least a 10-B rated extinguisher for high-hazard areas where maximum fire size is 25 square feet.

NFPA - National Fire Protection Association Practice Test

NFPA - National Fire Protection Association Practice Test

NFPA NFPA 10 Portable Fire Extinguishers 2