30) Soft soldering is generally done
Answer is:
Below 450 Degree C
Related Welding and Soldering MCQ - Turner (Set-1) with Answers
Answer is:
above 427 Degree C but lower than that of base metal is used
Explanation:
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.
Answer is:
Carbon
Explanation:
In resistance brazing, the electrodes used are made of Carbon.
Answer is:
Step-down transformer
Explanation:
In resistance brazing, the source of power supply is Step-down transformer.
