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Q. |
In which of the following type of flame, oxygen is deficient in proportion with acetylene? |
A. | neutral flame |
B. | oxidizing flame |
C. | carburizing flame |
D. | both oxidizing flame and carburizing flame |
Answer» C. carburizing flame | |
Explanation: the carburizing flame has excess acetylene then oxygen. reducing flame is used for the welding of low carbon and alloy steel. |
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