answers

1.  The minimum melting point of filler rods for brazing is 500oC (Answer B)

2.  One of the three important conditions for successful brazing is a dry chemically clean metal surface, free from grease and oxide (Answer D)

3.  The typical brazing gap used for silver solder is 0.05 and 0.20 mm (Answer D)

4.  When forming 90o machine bends no extra allowance is needed (Answer D)

5.  The single line drawing shown is an example of a cross over tee (Answer B)

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