
FSM chapter 2
Flashcard
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Other
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Vocational training
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Practice Problem
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Hard
Ryan Lew
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31 questions
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1.
FLASHCARD QUESTION
Front
1. What is fire, according to fire science?
Back
A rapid oxidative, exothermic reaction that releases heat and sustains itself.
2.
FLASHCARD QUESTION
Front
What are the four components of the fire tetrahedron?
Back
Fuel, heat, oxygen, and chemical chain reaction.
3.
FLASHCARD QUESTION
Front
How can fire be extinguished using the fire tetrahedron concept?
Back
By removing any one of the four components:
1.Removal of Fuel (starvation)
2.Removal of oxygen (smothering)
3. Removal of Heat (cooling)
4. Interference by Removal of Free Radicals (Chemical Chain Reaction)
4.
FLASHCARD QUESTION
Front
How do vapours burn?
Back
By igniting within flammability limits when mixed with air and exposed to heat.
5.
FLASHCARD QUESTION
Front
How do liquids burn?
Back
They vaporizing first; then the vapour burns if it reaches flash/fire/auto-ignition points.
6.
FLASHCARD QUESTION
Front
Explain Flash point, Fire point and Auto Ignition Point
Back
Flash Point: The lowest temperature at which a substance gives off vapour that can ignite briefly.
Fire Point: The temperature slightly above the flash point at which vapours burn sustainably after ignition.
Auto Ignition Point: The lowest temperature at which a substance spontaneously ignites without any external flame or spark.
7.
FLASHCARD QUESTION
Front
How do solids burn?
Back
Via pyrolysis—thermal decomposition that releases vapours for flaming or smouldering combustion.
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