CFPS Portable Fire Extinguishers

Question 1

According to NFPA 10, which fire class designation applies to fires involving ordinary combustibles such as wood, paper, cloth, and plastics?

Accepted Answer

Class A

Answer

Class A fires involve ordinary combustibles such as wood, paper, cloth, rubber, and many plastics.

Question 2

Which type of portable fire extinguisher agent is specifically required for Class K fires involving cooking oils and fats in commercial cooking equipment?

Accepted Answer

Wet chemical

Answer

Wet chemical agents saponify cooking oils and fats to suppress the fire and prevent re-ignition, making them the required agent for Class K fires.

Question 3

According to NFPA 10, what is the maximum travel distance to a Class A portable fire extinguisher in a light hazard occupancy?

Accepted Answer

75 feet

Answer

NFPA 10 Table 6.2.1.1 specifies a maximum travel distance of 75 feet to a Class A extinguisher in light hazard occupancies.

Question 4

What does the numerical component of an extinguisher's alphanumeric rating (e.g., the '2' in 2-A) indicate?

Accepted Answer

Relative firefighting capacity compared to a reference test fire

Answer

The number in an extinguisher rating indicates relative firefighting capacity; a 2-A extinguisher has twice the fire-extinguishing capability of a 1-A extinguisher.

Question 5

Which portable fire extinguisher agent leaves virtually no residue after discharge, making it suitable for protecting sensitive electronic equipment?

Accepted Answer

Carbon dioxide (CO2)

Answer

Carbon dioxide extinguishes fire by oxygen displacement and leaves no residue, making it ideal for protecting sensitive electronics and archival materials.

CFPS (Certfied Fire Protection Specialist) Practice Test

CFPS (Certfied Fire Protection Specialist) Practice Test

CFPS Portable Fire Extinguishers