NFPA 10 Exam Questions and Answers |Fall 2026/2027 Update
| 100% Correct Latest (Graded A+)
Question 1
A colorless, odorless, electrically nonconductive inert gas that is a suitable medium for extinguishing Class B and Class C
fires
Correct Answer
Carbon Dioxide
Question 2
A powder composed of very small particles, usually sodium bicarbonate, potassium bicarbonate, or ammonium phosphate-
based with added particulate material supplemented by special treatment toprovide resistance to packing, resistance to
moisture absorption (caking), and the proper flow capabilities
Correct Answer
Dry Chemical
Question 3
Normally an aqueous solution of organic or inorganic salts or a combination thereof that forms an extinguishing agent.
Correct Answer
Wet chemical
Page 1 of 20
,Question 4
Electrically non-conducting, volatile, or gaseous fire extinguishant that does not leave a residue uponevaporation.
Correct Answer
Clean Agent
Question 5
A system that is constructed in a manner that does not introduce foreign material into the agent being recovered and has
a means of visually inspecting the recovered agent for contaminants.
Correct Answer
Dry Chemical Closed Recovery System
Question 6
A system that provides for the transfer of halogenated agents between fire extinguishers, supply containers, and recharge
and recovery containers so that none of the halogenated agent escapes to the atmosphere.
Correct Answer
Halogenated Closed Recovery System
Question 7
Cylinders (and cartridges) containing nitrogen, compressed air, carbon dioxide, or other gases at a pressure higher than
500 psi (3447 kPa) at 70°F (21°C).
Correct Answer
High-Pressure Cylinder
Page 2 of 20
, Question 8
Cylinders containing fire extinguishing agent (medium), nitrogen, compressed air, or other compressed gases at a service
pressure of 500 psi (3447 kPa) or lower at 70°F (21°C).
Correct Answer
Low-Pressure Cylinder
Question 9
Solid materials in powder or granular form designed to extinguish Class D combustible metal fires by crusting, smothering,
or heat-transferring means.
Correct Answer
Dry Powder
Question 10
Either a local alarm device to indicate when an extinguisher is removed from its designated location or a method of
electronic communication (data transmission) between an in-place fire extinguisher and an electronic monitoring
device/system.
Correct Answer
Electronic Monitoring
Page 3 of 20
| 100% Correct Latest (Graded A+)
Question 1
A colorless, odorless, electrically nonconductive inert gas that is a suitable medium for extinguishing Class B and Class C
fires
Correct Answer
Carbon Dioxide
Question 2
A powder composed of very small particles, usually sodium bicarbonate, potassium bicarbonate, or ammonium phosphate-
based with added particulate material supplemented by special treatment toprovide resistance to packing, resistance to
moisture absorption (caking), and the proper flow capabilities
Correct Answer
Dry Chemical
Question 3
Normally an aqueous solution of organic or inorganic salts or a combination thereof that forms an extinguishing agent.
Correct Answer
Wet chemical
Page 1 of 20
,Question 4
Electrically non-conducting, volatile, or gaseous fire extinguishant that does not leave a residue uponevaporation.
Correct Answer
Clean Agent
Question 5
A system that is constructed in a manner that does not introduce foreign material into the agent being recovered and has
a means of visually inspecting the recovered agent for contaminants.
Correct Answer
Dry Chemical Closed Recovery System
Question 6
A system that provides for the transfer of halogenated agents between fire extinguishers, supply containers, and recharge
and recovery containers so that none of the halogenated agent escapes to the atmosphere.
Correct Answer
Halogenated Closed Recovery System
Question 7
Cylinders (and cartridges) containing nitrogen, compressed air, carbon dioxide, or other gases at a pressure higher than
500 psi (3447 kPa) at 70°F (21°C).
Correct Answer
High-Pressure Cylinder
Page 2 of 20
, Question 8
Cylinders containing fire extinguishing agent (medium), nitrogen, compressed air, or other compressed gases at a service
pressure of 500 psi (3447 kPa) or lower at 70°F (21°C).
Correct Answer
Low-Pressure Cylinder
Question 9
Solid materials in powder or granular form designed to extinguish Class D combustible metal fires by crusting, smothering,
or heat-transferring means.
Correct Answer
Dry Powder
Question 10
Either a local alarm device to indicate when an extinguisher is removed from its designated location or a method of
electronic communication (data transmission) between an in-place fire extinguisher and an electronic monitoring
device/system.
Correct Answer
Electronic Monitoring
Page 3 of 20
