In which of the following type of flame, oxygen is in excess proportion with acetylene?

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Manufacturing Engineering Practice Test: Gas Welding and Gas Cutting — practice the complete quiz, review flashcards, or try a random question.

Gas welding, also known as oxy-fuel welding, uses a gas flame to join metals. Gas cutting uses acetylene and oxygen to heat metal until it's red hot, then uses pure oxygen to burn away the metal.


In which of the following type of flame, oxygen is in excess proportion with acetylene?