Question

Since 1900, when the first shielded metal arc welding electrodes were introduced, has the use of the oxyacetylene flame for welding increased. True or False?

Answer 1

Since 1900, the use of the oxyacetylene flame for welding has decreased with the introduction of shielded metal arc welding electrodes.

Step-by-step explanation:

The oxyacetylene flame is commonly used in welding because of its high temperature and ability to melt metals. Since the introduction of shielded metal arc welding electrodes in 1900, the use of the oxyacetylene flame for welding has actually decreased. This is because shielded metal arc welding offers a more efficient and cost-effective method of welding compared to oxyacetylene welding. With shielded metal arc welding, a consumable electrode is used, which eliminates the need for a separate fuel gas like acetylene. Instead, the heat is generated by the electric arc produced between the electrode and the workpiece.