COMBUSTION-IGNITION TEMP-TYPE OF COMBUSTION

What is the process of a substance reacting with oxygen to release heat called?

• Oxidation
• Combustion
• Evaporation
• Condensation

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

• Coal
• Petrol
• Natural gas
• Wood

Which of these is a gaseous fuel?

• Wood
• Charcoal
• LPG (Liquefied Petroleum Gas)
• Kerosene

What is the primary requirement for any combustion reaction?

• Nitrogen
• Oxygen
• Carbon dioxide
• Sulfur

What is the lowest temperature at which a substance catches fire called?

• Boiling point
• Melting point
• Ignition temperature
• Freezing point

A substance will not catch fire if its temperature is below its

• Freezing point
• Boiling point
• Ignition temperature
• Melting point

Substances that have very low ignition temperature are called:

• Non-combustible
• Inflammable substances
• Cold fuels
• Non-reactive substances

Which of the following is an example of an inflammable substance?

• Water
• Sand
• Petrol
• Iron

What are the three essential requirements for producing fire?

• Fuel, air, and heat
• Water, fuel, and light
• Oxygen, nitrogen, and firewood
• Fuel, light, and water

Fire can be controlled by removing:

• Fuel
• Oxygen
• Heat
• Any of the above