Oxy-fuel cutting

what kind of torch is this

• heavy duty torch

• 3 barrel torch

• combination torch

what does C2H2 mean

• Oxygen

• 25% CO2 & 75% Argon

• 100% Argon

• Acetylene

What is the explosive limit of acetylene in air

• 3.0% to 93%

• 2.5% to 60%

• 2.5% to 80%

• 5.0% to 59%

What is the explosive limit of acetylene in pure oxygen

• 3.0% to 93%

• 2.5% to 60%

• 2.5% to 80%

• 5.0% to 59%

Which gas is produced using the air liquefaction Process?  

• acetylene

• nitrogen

• oxygen

• argon

What is the safety device used on oxygen cylinders?

• rupture disk

• fusible plugs

• pressure safety valve

• oxygen regulator

To identify the contents of a cylinder you should look for?

• the color of the bottle

• the WHMIS label

• the size of the bottle

What is the oxy-fuel cutting process?

• erosion

• abrasion

• oxidization

• compression

Which ferrous-based metals cannot be cut satisfactorily with an oxy-fuel cutting torch?

• stainless steel

• mild steel

• high carbon steel

• wrought iron

The space created when a piece of mild steel is cut with the ox-fuel cutting torch is called the:

• groove

• bead

• kerf

• kerf lines