WorksheetsBrazing Techniques and Safety Procedures
Total questions: 15
Worksheet time: 15mins
What is the main process being demonstrated in this video?
Welding
Soldering
Brazing
Forging
What material is being joined together in this demonstration?
Copper
Aluminum
Steel
Plastic
Why is a V-cut made in the 6mm steel rod?
To make it look more interesting
To help the 3mm rod sit in place
To make the rod easier to bend
To increase the strength of the rod
What is a key difference between welding and brazing?
Welding uses glue, brazing does not
Brazing melts the main metals, welding does not
Welding melts the main metals, brazing does not
Brazing uses much higher temperatures than welding
What is the approximate melting point of steel when welding?
Just over 100 degrees Celsius
Just over 500 degrees Celsius
Just over 1000 degrees Celsius
Just over 1400 degrees Celsius
What type of gas is used to operate the brazing hearth?
Propane
Butane
Natural gas
Oxygen
What are the special bricks in the brazing hearth called?
Clay bricks
House bricks
Fire bricks
Stone bricks
Why are the fire bricks in the brazing hearth arranged in a curved shape?
To make the hearth look better
To make it easier to clean the hearth
To trap the flames and keep the heat inside
To prevent the metal pieces from falling out
What is the purpose of the extraction system above the brazing hearth?
To make the room brighter
To cool down the equipment quickly
To remove smoke, fumes, and gases
To provide fresh air for the flame
What is the very first step to start the brazing torch system?
Turn on the gas
Turn on the air
Put power to the brazing hearth
Light a match
Which color pipe on the brazing torch carries natural gas?
Blue
Red
Yellow
Green
What color flame is produced if only natural gas is burned from the torch?
Blue
Green
Yellow
Orange
What is the correct order to turn off the brazing torch?
Turn off the air first, then the gas
Turn off the gas first, then the air
Turn off both the gas and air at the same time
Turn off the main power switch immediately
What is the name of the pink powder used in brazing?
Solder
Flux
Filler
Adhesive
What is the final step to cool the brazed metal piece after joining?
Let it cool down in the air
Bury it in sand
Quench it in cold water
Blow on it until it's cool
