Combustion

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

Which of these isn't in the fire triangle?

• Fuel
• Heat
• Oxygen
• Carbon dioxide

Another term for burning is

• Fire triangle
• Magnesium oxide
• Combustion
• Bustion

A good fuel has high calorific value.

• True
• False

Water is not used to control fires involving electrical appliances.

• False
• True

Wood is a better fuel than LPG.

• True
• False

A good fuel burns neither too fast nor too slowly.

• True
• False

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

The ignition temperature is the temperature below which a substance does notburn even in the presence of supporter of combustion.

• True
• False

Which of the following fuel has highest calorific value?

• Wood
• coal
• Hydrogen
• petrol

Which is not combustible substance

• Wood
• Cow dung cake
• stone
• paper