Brazing Metals Quiz

Steel to Steel

Copper To Copper

Aluminium to Aluminium

Brass To Brass

1. Brazing is used to join which two metals?

2. What is the filler rod made from?

Brass

Iron

Steel

Aluminium

Tin

Copper

Silver

Because Aluminium has too lowa melting point and would melt before the brass

Because Aluminium has too higha melting point and will not melt.

Because aluminium is non ferrous

Because Aluminium is too hard

3. Why would it be impossible to braze aluminium with normal brass brazing rods?

4. At approximately what temperature does brazing take place.

1100˚C

400˚C

700˚C

500˚C

900˚C

200˚C

300˚C

5. Which of the following abrasive materials would be used to clean the steel before brazing?

Aluminium Oxide paper

Wet & Dry Silicon Carbide paper Emery Cloth

Wire wool

To speed up the brazing process

To clean the metal by dissolving any oxides already present

To make the final joint stronger

To prevent the steel oxidising during the brazing process

6. What is the flux used for ?(Click on the two correct answers)

To speed up the brazing process

To clean the metal by dissolving any oxides already present

To make the final joint stronger

To prevent the steel oxidising during the brazing process

6. What is the flux used for ?(Click on the two correct answers)

And the second reason is….

Cherry Red

Dull red

White Hot

As hot as possible

7. The correct temperature is reached when the work piece is ……

Does not matter

Under cold water

Slowly

8. When completed the work piece should be cooled ….

Well Done

Quiz Completed

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