Topic 4. 1 - Fire

Fire requires the following ingredients such as

• Fuel, Source of heat, Oxygen and Light

• Fuel, Source of heat and Oxygen

• Fuel, Source of heat and Hydrogen

Which heat transfer requires transfer of thermal energy through matter of space by electromagnetic waves?

• Conduction

• Convection

• Radiation

The following heat transfer is called

• Conduction

• Convection

• Radiation

The sequence for stages of fire is as followed:

• Ignition > Fire Growth > Flashpoint > Full Development > Decay

• Decay > Ignition > Fire Growth > Flashpoint > Full Development

• Ignition > Fire Growth > Flashpoint > Decay > Full Development

Which fire reaches the decay stage first?

• Fuel Controlled fire

• Ventilation Controlled fire

Answer explanation

Dotted line represents the ventilation controlled. A ventilation-controlled fire is a fire where the fire growth is determined by the amount of air available. Therefore, the fire will extinct when the available oxygen runs out

Figure shows the cause of airflow through building envelope due to

• Combustion and Ventilation

• Stack Effect

• Wind Effect

Which method of extinguishing requires to remove electrical fires?

• Water, Dry Powder, Wet Chemical

• Foam, Carbon Dioxide, Dry Powder

• Carbon Dioxide, Dry Powder

What are the methods of extinction to remove fire?

• Heating, Smothering and Starving

• Cooling, Smothering and Starving

• Cooling, Smothering and Saving

Starving limits the ______ supply

• fuel

• oxygen

• heat