Multiple Choice
What are the four elements of the fire tetrahedron?
A) Air, fuel, ignition, and chemical chain reaction
B) Air, fuel, ignition, and flame
C) Oxygen, fuel, heat, chemical chain reaction
D) Nitrogen, fuel, ignition, and smoke
E) Nitrogen, fuel, smoke, chemical chain reaction
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Class C fires involve combustible, easily oxidized
Q2: Fires are classified according to their properties,
Q4: The explosive range of a material refers
Q4: Most gases are heavier than air.
Q5: The by-product of combustion is energy in
Q7: National Fire Protection Association statistics show that
Q8: Which of the following are products of
Q9: What are the three elements required for
Q10: Cooling is one of the principal ways
Q11: The blue area an NFPA 704 label