NFPA 10 Study Guide Questions and Answers |Fall 2026/2027
Update | 100% Correct Latest (Graded A+)
Question 1
Class A Fires are what?
Correct Answer
Ordinary Materials such as wood, cloth, paper, rubber, and many plastics
Question 2
Class B Fire are what?
Correct Answer
Flammable liquids, combustible liquids, combustible liquids, petroleum greases, tars, oils, oil based paints, solvents,
laquers, alcohols and flammable gases
Question 3
Class C Fires are what?
Correct Answer
Electrical Fires
Page 1 of 12
, Question 4
Class D Fires are what?
Correct Answer
Combustible Metals such as Magnesium, Zirconium, Titanium
Question 5
Class K Fires are what?
Correct Answer
Fires in cooking appliances that involve combustible cooking media (Vegetable or animal oils and fats)
Question 6
Fire Extinguishers containing only plain water shall be protected at temperatures as low as what?
Correct Answer
-40℉, by the use of Antifreeze
Question 7
What Shall not be used in stainless steel extinguishers?
Correct Answer
Calcium Chloride
Page 2 of 12
Update | 100% Correct Latest (Graded A+)
Question 1
Class A Fires are what?
Correct Answer
Ordinary Materials such as wood, cloth, paper, rubber, and many plastics
Question 2
Class B Fire are what?
Correct Answer
Flammable liquids, combustible liquids, combustible liquids, petroleum greases, tars, oils, oil based paints, solvents,
laquers, alcohols and flammable gases
Question 3
Class C Fires are what?
Correct Answer
Electrical Fires
Page 1 of 12
, Question 4
Class D Fires are what?
Correct Answer
Combustible Metals such as Magnesium, Zirconium, Titanium
Question 5
Class K Fires are what?
Correct Answer
Fires in cooking appliances that involve combustible cooking media (Vegetable or animal oils and fats)
Question 6
Fire Extinguishers containing only plain water shall be protected at temperatures as low as what?
Correct Answer
-40℉, by the use of Antifreeze
Question 7
What Shall not be used in stainless steel extinguishers?
Correct Answer
Calcium Chloride
Page 2 of 12