Multiple choice

Which of the following is/are essential requirement(s) for producing a fire?

  1. Fuel

  2. Air

  3. Heat

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The combustion process requires three basic conditions as given below:

  1. Presence of a combustible substance (it may or may not be categorised as a fuel)
  2. Presence of a supporter of combustion (air)
  3. The temperature of the fuel should be equal to or higher than its ignition temperature (heat is required).

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