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Question

What is the advantage of using high octane number fuel in petrol car

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A.

Less detonation tendency

B.

Less harmful emissions

C.

Low fuel consumption

D.

Less wear and tear of engine

Answer ( Option A)

Less detonation tendency

Solution

  • The higher the octane number, better the anti-knocking properties (knocking is the phenomena in which the fuel pre-ignites and starts to burn before its ignition time i.e. the time when spark plug creates a spark,
  • hence creating unnecessary sound and shock waves which damage the engine and decrease the power output).

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