Brazing a Joint Quiz

What is the first step in preparing steel sheets for brazing?

• Applying the brazing rod

• Turning on the compressor

• Cleaning the steel sheets

• Heating the steel sheets

What is used to clean the steel sheets before brazing?

• Abrasive sponge

• Wire wool or emery cloth

• Soap and water

• Sandpaper

What is mixed with water to create a paste for brazing?

• Zinc powder

• Iron filings

• Borax flux

• Copper powder

What is the purpose of the borax flux in brazing?

• To cool the metal

• To prevent oxidation

• To add color to the joint

• To make the metal shiny

How is the gas ignited in the brazing process?

• With a pilot light or match

• With a candle

• With a lighter

• With a spark plug

What color indicates the hottest part of the flame?

• Green

• Red

• Yellow

• Blue

What is used to raise the steel pieces off the table?

• Wood blocks

• Fire bricks

• Metal rods

• Plastic stands

What happens if the steel is cooled too quickly after brazing?

• It becomes stronger

• It changes color

• It can crack or become distorted

• It becomes softer

What is the brazing rod made of?

• Copper-zinc alloy

• Iron-nickel alloy

• Steel-tin alloy

• Aluminum-silver alloy

What should be worn to protect against burns during brazing?

• Cotton gloves

• Woolen gloves

• Plastic aprons

• Leather aprons and gloves