Which one of the following welding operations generates the lowest power density:
A)arc welding
B)electron beam welding
C)oxyfuel welding
D)resistance welding

Question

Quizplus · Accepted Answer

Oxyfuel welding generates the lowest power density among the options given. This is because it relies on the combustion of a fuel gas (often acetylene) with oxygen, which produces a relatively diffuse flame compared to the concentrated energy sources used in arc welding, electron beam welding, and resistance welding. These other methods focus energy more narrowly, resulting in higher power densities.

Which One of the Following Welding Operations Generates the Lowest