30) Soft soldering is generally done
Below 450 Degree C
Related Welding and Soldering MCQ - Turner (Set-1) with Answers
Weaker than brazing
above 427 Degree C but lower than that of base metal is used
Brazing is a process of joining metals by using layer of nonferrous metal between the surface to be joined. The alloy used for brazing is known as spelter (combination of copper and zinc). Brazing is a process, in which a non-ferrous filler metal having a melting point above 427 degree Centigrade but lower than that of base metal is used.
In resistance brazing, the electrodes used are made of Carbon.
In resistance brazing, the source of power supply is Step-down transformer.