A neutral flame is obtained by supplying an Equal volumes of oxygen and acetylene.
131) a neutral flame is obtained by supplying
Answer is:
equal volumes of oxygen and acetylene
Explanation:
Related Workshop Technology MCQ with Answers
Answer is:
carburizing flame
Explanation:
When more volume of acetylene and less volume of oxygen is supplied, then a Carburising flame is obtained.
carburizing flame is one with little oxygen, which produces a sooty, lower-temperature flame. It is often used to anneal metal, making it more malleable and flexible during the welding process.
Answer is:
all of these
Explanation:
Neutral flame is used to weld
* steel
* cat iron
* copper
Answer is:
oxidizing
Explanation:
A slightly oxidizing flame is used in torch brazing of steel and cast iron. A stronger oxidizing flame is used in the welding of brass or bronze.
Answer is:
hard surfacing materials such as satellite
Explanation:
A carburizing flame is advantageous for welding high carbon steel and hard facing such nonferrous alloys as nickel and Monel.
Carburising flame is used to weld Hard surfacing materials such as stellite