STCW Basic Training Exam 2026
Questions and Answers
What are the conditions needed for a fire to occur? - Correct answer-fuel (material
that acts as a fuel)
sources of ignition (chemical, biological, or physical)
oxygen
What are the components of the fire tetrahedron? - Correct answer-heat, fuel,
oxygen, chain reaction
How do you stop a fire? - Correct answer-Remove any of the components of the
fire tetrahedron (i.e. remove fuel, oxygen, heat, or interrupt the chemical reaction)
Oxygen - Correct answer--21% ambient air
-robust flaming combustion down to 15-16%
-surface combustion (smoldering) down to about 11%
-loss of consciousness in atmospheres with 12% or less oxygen
Heat - Correct answer-anything that produces the required temperature for ignition
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, -sun
-open flame
-chemical reaction
-sparks
-friction
Fuel - Correct answer--only vapors burn
-liquids and solids must first be vaporized
-tendency of a substance to vaporize is an indication of its ability to burn
-liquids vaporize more readily than solids
Chain reaction - Correct answer--you can have oxygen, heat, and fuel in the same
place and still not have a fire
-fuel and oxygen relationship must be balanced (i.e. in the flammable range)
-heat must be sufficient to bring fuel to its ignition
What is a flash point (of a liquid)? - Correct answer--the lower temp that a liquid
can give off sufficient gas to form a flammable gas mixture near the surface of a
liquid
-lowest temp at which we can have fire
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Questions and Answers
What are the conditions needed for a fire to occur? - Correct answer-fuel (material
that acts as a fuel)
sources of ignition (chemical, biological, or physical)
oxygen
What are the components of the fire tetrahedron? - Correct answer-heat, fuel,
oxygen, chain reaction
How do you stop a fire? - Correct answer-Remove any of the components of the
fire tetrahedron (i.e. remove fuel, oxygen, heat, or interrupt the chemical reaction)
Oxygen - Correct answer--21% ambient air
-robust flaming combustion down to 15-16%
-surface combustion (smoldering) down to about 11%
-loss of consciousness in atmospheres with 12% or less oxygen
Heat - Correct answer-anything that produces the required temperature for ignition
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, -sun
-open flame
-chemical reaction
-sparks
-friction
Fuel - Correct answer--only vapors burn
-liquids and solids must first be vaporized
-tendency of a substance to vaporize is an indication of its ability to burn
-liquids vaporize more readily than solids
Chain reaction - Correct answer--you can have oxygen, heat, and fuel in the same
place and still not have a fire
-fuel and oxygen relationship must be balanced (i.e. in the flammable range)
-heat must be sufficient to bring fuel to its ignition
What is a flash point (of a liquid)? - Correct answer--the lower temp that a liquid
can give off sufficient gas to form a flammable gas mixture near the surface of a
liquid
-lowest temp at which we can have fire
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
