Chapter Air Science Form 1

Which of the following is NOT a necessary component for combustion to occur?

• Oxygen

• Fuel

• Water

• Heat

Combustion is another word for _______________________.

• Transportation

• Respiration

• Fossil Fuel

• Burning

What does NOT produce carbon dioxide?

• Photosynthesis

• Burning Fossil Fuels

• Animal Respiration

• Plants decaying

Three conditions needed for combustion

• Fuel, oxygen, heat

• Fuel, paper, heat

• Fuel, wood, heat

Why the candle flame is extinguished when the boy blow?

• The saliva from the boy put off the flame

• The oxygen is removed from the flame

Why do we use water to extinguish fire?

• To removed the oxygen

• 
  To removed the fuel

• To removed the heat

Which type of fire extinguisher should be used on a fire involving flammable liquids such as grease or oil?

• Water

• 
  Carbon Dioxide 

• Dry Chemical

• Foam

Combustion from solid (wood, paper, cloth) can be extinguish using extinguisher typewater and dry powder

• dry powder and foam

• foam

• water and dry powder

• 
  carbon dioxide and water

Water is not used to control fires involving electrical appliances.

• 
  False

• True

How does the fire blanket work?

• 
  To reduce the heat and eventually extinguish the fire

• 
  To reduce the fuel and eventually extinguish the fire

• To reduce the oxygen and eventually extinguish the fire