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The process of mixing air fuel mixture in SI engine is known as:

  • A.Ignition
  • B.Carburation
  • C.Scavenging
  • D.Firing of engine

Answer: B

The process is called carburation.

In an SI engine the carburettor atomises and vaporises petrol and mixes it with air in the correct proportion before the charge enters the cylinder. This preparation of the mixture is carburation.

Ignition is starting combustion with the spark, scavenging is clearing burnt gases from the cylinder, and 'firing of engine' is not the term for mixing.

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