Torch Basics
This fuel gas is most commonly used with oxygen for cutting steel.
What is Acetylene?
What gas is commonly used in plasma cutting?
Compressed air.
What PPE is required when cutting?
Gloves, goggles, face shield
What tool is used to light a torch?
Striker.
Which is faster on thin metal?
Plasma cutting.
The purpose of this gas in oxy-fuel cutting is to oxidize and burn the metal.
What is oxygen?
What creates the plasma arc?
Ionized gas and electricity.
Why should oil never contact oxygen fittings?
Oxygen reacts violently with oil
Why is purging hoses important?
Removes air and contaminants.
Which can cut thicker steel?
Oxy-fuel cutting.
This type of flame is used for cutting steel.
What is a neutral flame?
What types of metal can plasma cut?
Any electrically conductive metal.
What safety device prevents backflow of gas?
Flashback arrestor
What indicates a proper plasma cut?
Smooth edge with minimal dross.
Which requires electricity?
Plasma cutting.
Why can’t oxy-fuel cutting be used on aluminum?
Aluminum does not oxidize like steel.
Why must the work clamp be attached?
To complete the electrical circuit.
Why should cylinders be chained upright?
Prevent tipping and valve damage, and also to prevent acetone from getting lodged in the valve.
What should be checked before lighting a torch?
Hoses, regulators, valves, pressures.
Which is more portable in the field?
Oxy-fuel
What happens if oxygen pressure is set too low while cutting?
Slag buildup and poor cut quality
What happens if the torch height is incorrect?
Poor cut quality or damage to consumables.
What is the biggest fire risk when cutting?
Sparks igniting nearby flammables
Why is travel speed important?
Affects cut quality and penetration
Which produces a narrower kerf?
Plasma