BCOT FIRE SAFETY TEST 2025 BRAND
NEW ACTUAL EXAM WITH ANSWERS.
4 phases of burning - correct answer -ignition, growth, fully
developed, decay
Ignition - correct answer -oxygen content high - 21%
temperature elevated - 100 degrees
easy to extinguish
Growth - correct answer -oxygen content above 15%
room temperature up to 1300 degrees
fire spreads rapidly
flashover possible
fully developed - correct answer -all combustibles have ignited
temperature over 3000 degrees
large amounts of fire gases
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Flashover - correct answer -when room becomes hot enough to
ignite spontaneously in adjacent area
Decay - correct answer -most dangerous
fire running out of fuel and oxygen - smoldering fuel left over
rate of combustion slowing down
high room temperature
little to no flame
potential for backdraft
Backdraft - correct answer -smoke explosion
extremely fast ignition of smoke and combustion products
happens when air is admitted to a superheated room with no
oxygen
occurs during decay phase
indications for backdraft: - correct answer -smoke exiting small
openings under pressure
black smoke becoming dense gray-yellow color
heavily smoke-stained windows