Demonstration should include

• selecting the correct filler metals
• fusion welding without a filler rod
• fusion welding with a filler rod.

Process/Skill Questions:

• What are the characteristics of a good weld?
• What corrections should be made if a poor weld is produced?
• How can it be determined whether the metal is hot enough for proper fusion?
• How can it be determined whether the fillet is large enough to provide sufficient strength to the joint?
• What happens to a fusion weld if the torch tip is the wrong size?
• What is the correct sequence for lighting an oxy-fuel torch?
• Why should a striker be used instead of a lighter?