Understanding the Fire Triangle

This video tutorial from Tobacco University explains the fire triangle, which consists of three essential components: fuel, oxygen, and heat. Each component is necessary for a fire to start and continue burning. The video details the types of fuel sources, the oxygen levels required, and the role of heat in ignition. It also covers how removing any one of these components can extinguish a fire, emphasizing the importance of understanding the fire triangle for fire safety and prevention.

What is the significance of the fire triangle in understanding fires?

• It describes the history of fire usage.

• It explains the three necessary elements for a fire to start and continue.

• It shows the chemical composition of fire.

• It provides a method to measure fire temperature.

Which of the following is NOT a component of the fire triangle?

• Fuel

• Oxygen

• Water

• Heat

What is a characteristic of a fuel source in the fire triangle?

• It is always a natural material.

• It must be a solid material.

• It must be a liquid to burn.

• It can be in any state of matter: solid, liquid, or gas.

Which of the following is an example of a fuel source?

• Wood

• Carbon dioxide

• Sand

• Water

What is the minimum percentage of oxygen required in the air for a fire to sustain?

• 25%

• 16%

• 10%

• 21%

Why is 21% atmospheric oxygen not always sufficient for a fire?

• Because it is too low for combustion.

• Because it is not pure oxygen.

• Because it is too high for combustion.

• Because only a portion of it is available for combustion.

What role does heat play in the fire triangle?

• It acts as a barrier to fire spread.

• It raises the temperature of the fuel to the point of ignition.

• It provides oxygen to the fire.

• It cools down the fuel source.

What happens if one component of the fire triangle is removed?

• The fire will produce more smoke.

• The fire will be extinguished.

• The fire will change color.

• The fire will burn more intensely.

Which of the following is true about the fire triangle?

• The triangle can be broken without affecting the fire.

• All three components must be present at the same time and place.

• Only two components are needed for a fire to start.

• All three components must be present at different times.

What can be inferred if evidence of a fire is found?

• Only heat was present.

• Only fuel was present.

• Only oxygen was present.

• All three components of the fire triangle were present.