Question

Brazing and soldering require much less heating than welding, therefore ___.

A. They are suitable for all materials
B. They are slower processes
C. Less thermal stress on the workpieces
D. They produce stronger joints

Answer 1

Brazing and soldering induce less thermal stress on workpieces (option C) compared to welding because they melt a filler material at lower temperatures, reducing the risks of warping and structural weaknesses without being inherently slower or more suitable for all materials.

Step-by-step explanation:

Brazing and soldering require much less heating than welding, thus the most accurate statement about their effect on the materials being joined is C. Less thermal stress on the workpieces. These processes involve the melting of a filler material at a lower temperature than the workpieces to join them together, which implies that the base materials experience less thermal expansion and contraction.


This reduced thermal stress minimizes the potential for warping, distortion, and residual stresses that could lead to structural weaknesses in the joint. Hence, brazing and soldering are beneficial when the materials being joined could be sensitive to high temperature or when preserving the characteristics of the materials is critical.

While brazing and soldering do not typically produce stronger joints than welding (eliminating option D), they are not necessarily suitable for all materials (eliminating option A). They are also not inherently slower processes (eliminating option B); their speed depends on various factors including the size of the joint and the skill of the operator.