36) In this method of brazing, the melting point of the filler metal ranges from 620 Degree C to 800 Degree C and it is used in instrument making. The method is
Answer is:
silver brazing
Related Welding and Soldering MCQ - Turner (Set-1) with Answers
Answer is:
Because aluminium has a too low melting point and would melt before brass
Explanation:
It is impossible to braze aluminium with normal brass brazing rods because, aluminium has a too low melting point and would melt before brass.
Melting Temperature of Brass normally 900 Degree Centigrade to 940 Degree Centigrade.
Melting Temperature of aluminium normally around 660.3 Degree Centigrade.
Answer is:
Emery cloth
Explanation:
Emery cloth is used as abrasive materials to clean the steel before brazing.
Answer is:
To clean the metal by dissolving any oxide already present
Explanation:
Flux is used in brazing to clean the metal by dissolving any oxide already present.
Answer is:
slowly
Explanation:
When brazing is completed workpiece should be cooled slowly.
