問題一覧
1
the fourth element of fire known as the “Chemical Chain Reaction”.
Fire tetrahedron theory
2
Three elements are necessary to create or produce fire.
Fire triangle theory
3
Ways to extinguish fire by Fire triangle theory
Cooling , Smothering , Starving
4
A form of energy measured in degree of temperature
Heat
5
A colorless and odorless gas and one of the composition of air that supports the fire which is approximately 21% by volume.
Oxygen
6
A source of oxygen is needed. Approximately 16% is required. Normal air contains __% oxygen.
21%
7
Material or substance that yield oxygen.
Oxidizing agent
8
Uninhibited chemical chain reaction
Self-Sustained chemical reaction
9
The most common source of heat in combustion.
Chemical energy
10
An energy developed when electrons flow through a conductor
Electrical energy
11
An energy generated when atoms either split apart (fission) or combine (fusion)
Nuclear energy
12
An energy created by friction and compression.
Mechanical energy
13
Molecules are closely packed.
Solid
14
Remove the fuel.
Starving
15
Reduce the temperature.
Cooling
16
Molecules are free to moved.
Gas
17
Molecules are loosely packed.
Liquid
18
Thermal decomposition of solid fuel through the action of heat
Pyrolysis
19
Visible radiation created at the atomic level such as flame.
Light
20
Visible manifestation of fire.
Flame
21
An active chemical reaction that take place between fuel, oxygen, and heat.
Fire
22
This combustion reaction can be characterized by four components by tetrahedron theory.
Reducing agent , the oxidizing agent , Temperature , Uninhabited chain reaction
23
Self-sustaining chemical reaction producing energy
Combustion
24
Cut-off the oxygen supply.
Smothering
25
Any substance or combustibles which reacts chemically with oxygen and produces flames.
Fuel
26
Material or substance being burned in the combustion process.
Reducing agent
27
The energy component of the fire tetrahedron.
Temperature