STCW BASIC TRAINING EXAM
QUESTIONS |GUARANTEED ACCURATE
ANSWERS
What are the conditions needed for a fire to occur? - ACCURATE
ANSWERS✔✔ fuel (material that acts as a fuel)
sources of ignition (chemical, biological, or physical)
oxygen
What are the components of the fire tetrahedron? - ACCURATE
ANSWERS✔✔ heat, fuel, oxygen, chain reaction
How do you stop a fire? - ACCURATE ANSWERS✔✔ Remove any of
the components of the fire tetrahedron (i.e. remove fuel, oxygen, heat, or
interrupt the chemical reaction)
Oxygen - ACCURATE ANSWERS✔✔ -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 - ACCURATE ANSWERS✔✔ anything that produces the required
temperature for ignition
, -sun
-open flame
-chemical reaction
-sparks
-friction
Fuel - ACCURATE ANSWERS✔✔ -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 - ACCURATE ANSWERS✔✔ -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)? - ACCURATE ANSWERS✔✔ -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
-fire flashes across surface given sufficient oxygen and an external
source of ignition
QUESTIONS |GUARANTEED ACCURATE
ANSWERS
What are the conditions needed for a fire to occur? - ACCURATE
ANSWERS✔✔ fuel (material that acts as a fuel)
sources of ignition (chemical, biological, or physical)
oxygen
What are the components of the fire tetrahedron? - ACCURATE
ANSWERS✔✔ heat, fuel, oxygen, chain reaction
How do you stop a fire? - ACCURATE ANSWERS✔✔ Remove any of
the components of the fire tetrahedron (i.e. remove fuel, oxygen, heat, or
interrupt the chemical reaction)
Oxygen - ACCURATE ANSWERS✔✔ -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 - ACCURATE ANSWERS✔✔ anything that produces the required
temperature for ignition
, -sun
-open flame
-chemical reaction
-sparks
-friction
Fuel - ACCURATE ANSWERS✔✔ -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 - ACCURATE ANSWERS✔✔ -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)? - ACCURATE ANSWERS✔✔ -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
-fire flashes across surface given sufficient oxygen and an external
source of ignition
