NFPA 10 STUDY GUIDE EXAM 2025
QUESTIONS AND ANSWERS
Class A Fires are what? - ANS Ordinary Materials such as wood, cloth, paper, rubber, and
many plastics
Class B Fire are what? - ANS Flammable liquids, combustible liquids, combustible liquids,
petroleum greases, tars, oils, oil based paints, solvents, laquers, alcohols and flammable gases
Class C Fires are what? - ANS Electrical Fires
Class D Fires are what? - ANS Combustible Metals such as Magnesium, Zirconium, Titanium
Class K Fires are what? - ANS Fires in cooking appliances that involve combustible cooking
media (Vegetable or animal oils and fats)
Fire Extinguishers containing only plain water shall be protected at temperatures as low as
what? - ANS -40℉, by the use of Antifreeze
What Shall not be used in stainless steel extinguishers? - ANS Calcium Chloride
Fire Extinguishers shall be located so that the maximum distance of travel is what? - ANS less
that 75ft
COPYRIGHT © 2025 BRAINBARTER ALL RIGHTS RESERVED 1
, Tag or label, as a minimum shall identify what? - ANS Month and year maintenance was
performed
Person performing work
Name of Agency performing work
Internal Examination of dry chem with brazed brass shells, halogenated agents, and dry powder
stored_pressure with steel shells shall occur when? - ANS 6 Years
Which extinguishers are required to have a rating number preceding the classification letter? -
ANS Class A & B extinguishers
Which extinguishers do not require a number before the classification letter? - ANS Classes
C, D and K
Wheeled fire extinguishers can be considered for hazard protection for what reasons? -
ANS High hazard areas are present and limited personnel: requiring:
High flow rate
Increased stream range
Increased capacity
a High-Pressure Cylinder is held to what pressure? - ANS Higher than 500 psi
A Low-Pressure cylinder is held to what pressure? - ANS 500 psi or less at 70℉
a Light Hazard is what? - ANS Quantity and combustibility of class A & B are low and Quantity
of Class b is less that 1 gallon
Ordinary Hazard is what? - ANS Quantity and combustibility of Class A & B are moderate.
Total quantity of Class B is 1 gallon - 5 gallon
COPYRIGHT © 2025 BRAINBARTER ALL RIGHTS RESERVED 2
QUESTIONS AND ANSWERS
Class A Fires are what? - ANS Ordinary Materials such as wood, cloth, paper, rubber, and
many plastics
Class B Fire are what? - ANS Flammable liquids, combustible liquids, combustible liquids,
petroleum greases, tars, oils, oil based paints, solvents, laquers, alcohols and flammable gases
Class C Fires are what? - ANS Electrical Fires
Class D Fires are what? - ANS Combustible Metals such as Magnesium, Zirconium, Titanium
Class K Fires are what? - ANS Fires in cooking appliances that involve combustible cooking
media (Vegetable or animal oils and fats)
Fire Extinguishers containing only plain water shall be protected at temperatures as low as
what? - ANS -40℉, by the use of Antifreeze
What Shall not be used in stainless steel extinguishers? - ANS Calcium Chloride
Fire Extinguishers shall be located so that the maximum distance of travel is what? - ANS less
that 75ft
COPYRIGHT © 2025 BRAINBARTER ALL RIGHTS RESERVED 1
, Tag or label, as a minimum shall identify what? - ANS Month and year maintenance was
performed
Person performing work
Name of Agency performing work
Internal Examination of dry chem with brazed brass shells, halogenated agents, and dry powder
stored_pressure with steel shells shall occur when? - ANS 6 Years
Which extinguishers are required to have a rating number preceding the classification letter? -
ANS Class A & B extinguishers
Which extinguishers do not require a number before the classification letter? - ANS Classes
C, D and K
Wheeled fire extinguishers can be considered for hazard protection for what reasons? -
ANS High hazard areas are present and limited personnel: requiring:
High flow rate
Increased stream range
Increased capacity
a High-Pressure Cylinder is held to what pressure? - ANS Higher than 500 psi
A Low-Pressure cylinder is held to what pressure? - ANS 500 psi or less at 70℉
a Light Hazard is what? - ANS Quantity and combustibility of class A & B are low and Quantity
of Class b is less that 1 gallon
Ordinary Hazard is what? - ANS Quantity and combustibility of Class A & B are moderate.
Total quantity of Class B is 1 gallon - 5 gallon
COPYRIGHT © 2025 BRAINBARTER ALL RIGHTS RESERVED 2
