Q1057
The flux commonly used in brazing is
A.
Ammonium chloride
B.
Borax
AnswerC.
Zinc chloride
D.
Resin plus alcohol
Answer: Option B
Solution
Answer: Option B
Solution:
Traditionally borax was used as a flux for brazing, but there are now many different fluxes available, often using active chemicals such as fluorides as well as wetting agents.