Fire Safety Quiz U1 6.5

What kind of reaction is combustion?

• Physical

• Chemical

• Biological

• Mechanical

What 3 elements are needed for combustion to take place?

• Fuel, Heat, Water

• Fuel, Oxygen, Carbon Dioxide

• Fuel, Heat, Oxygen

• Fuel, Water, Oxygen

What is it called when a fire extinguishes itself?

• Suffocation

• Ignition

• Combustion

• Extinguishment

What would be the result of removing one of the three elements?

• Combustion will not take place

• The fire will become stronger

• The fire will produce more smoke

• The fire will spread faster

How can fuel be removed?

• By adding more fuel

• By removing the oxygen

• By increasing the heat

• By replacing the fuel with water

How can oxygen be removed to extinguish a fire?

• By adding more oxygen

• By replacing the oxygen with carbon dioxide

• By increasing the heat

• By removing the fuel

How can heat be removed to extinguish a fire?

• By adding more heat

• By replacing the heat with cold air

• By removing the fuel

• By pouring water on the fire

What happens when water is poured on a solid material fire?

• The fire becomes stronger

• The fire produces more smoke

• The fire spreads faster

• The water removes the heat and extinguishes the fire

What is the substance known as fuel?

• Wood or paper

• Carbon dioxide

• Water

• Cold air

What is the third element required for combustion to take place?

• Water

• Carbon dioxide

• Heat

• Source of ignition