Oxyacetylene Cutting

What is the proper flame to use when cutting mild steel with an oxyacetylene cutting torch?

• Acetylene flame
• Carburizing flame
• Neutral flame
• Oxidizing flame

When cutting mild steel with the oxyacetylene torch, the inner blue cones of the flame should be approximately ____ from the surface of the steel.

• 1/8 inch
• 1/4 inch
• 1/2 inch
• 3/4 inch

When is the right time to press down on the oxygen cutting lever?

• when you want to start cutting
• when the steel has heated to a bright red color
• when the steel starts to melt
• when the flame gets hot

How far down should you hold down the cutting oxygen lever when cutting mild steel with an oxyacetylene cutting torch?

• all the way down
• half the way down
• just far enough to get the cut going
• it depends on the thickness of the metal

What is the best way to hold the torch steady when cutting?

• simply hold the torch with two hands
• hold the torch with two hands while resting one hand on the table
• hold the torch with one hand and lean on the table with the other
• keep both thumbs on the cutting lever

Which of the following would be the safest way to light a torch?

• use a flint striker
• use a match
• use a cigarette lighter
• have someone else light it while you hold the torch and open the valves

What should you use to safely pick up small pieces of hot metal?

• gloves
• pliers
• balance it on a couple of welding rods
• balance it on a larger piece of steel

How fast should you move the torch when cutting mild steel with an oxyacetylene cutting torch?

• about 3 inches per minute
• at any speed that will allow you to be steady
• as slowly as possible in order to keep the edges of the kerf hot
• as fast as possible without losing the cut or allowing the kerf to shrink

Which of the following forms of PPE is not a requirement for using an oxyacetylene cutting torch?

• safety glasses and dark shaded cutting goggles or face shield
• Long sleeves and pants
• closed toed leather shoes
• welding hood

When making a good quality cut with the oxyacetylene cutting torch, what should you be able to see?

• dross build up inside the kerf
• flames inside the steel kerf
• leading edge of the kerf should appear to be molten
• both sides of the kerf should appear to be molten