Air and oxy unit 1

What is the fuel used in air acetylene welding?

• Oxygen
• Propane
• Carbon dioxide
• Nitrogen

What is the most common type of arc welding?

• TIG welding
• MIG welding
• Shielded metal arc welding
• Electroslag welding

What is the main advantage of using gas welding?

• High speed
• High portability
• High accuracy
• Low cost

Which type of welding process uses an electrode coated in flux?

• Shielded metal arc welding
• TIG welding
• MIG welding
• Plasma arc welding

What is the main disadvantage of using carbon arc welding?

• Low speed
• Low portability
• Low accuracy
• High cost