Oxy-Acetylene Cutting/Welding UPDATED ACTUAL QUESTIONS AND CORRECT
ANSWERS
Oxy Goggles Shade 5 Protective eyewear designed to protect from the light given off from gas
welding/cutting.
Acetylene A colorless flammable gas used in oxy-fuel welding and cutting. Is mixed with
acetone in the cylinder and burns at 5800 degrees F.
Propane A flammable gas used in oxy-fuel welding and cutting. Burns at 5300 degrees F
and is cheaper than acetylene.
Oxygen Pure gas that is mixed with the fuel gas to create a neutral flame. Is also used to
start the oxidation reaction in oxy-fuel cutting.
Acetylene Cylinder Gas tank containing acetylene gas. Is typically smaller than the oxygen cylinder. Is
usually red or black in color. Are usually filled to 225 psi.
, Oxygen Cylinder Gas tank containing pure oxygen gas. Is green in color. Full tanks have a pressure
of 2200 PSI.
Oxygen Hose Hose connecting the oxygen cylinder to the torch. Is green in color.
Acetylene Hose Hose connecting the acetylene cylinder to the torch. is red in color.
Oxygen and Acetylene Threads The different hoses have opposite threads so that the hose cannot be attached to
the wrong port on the torch or tank. Oxygen is right-handed, and acetylene is
left-handed or opposite threaded.
Spark/Friction Lighter Used for igniting the torch.
Chipping or Slag Hammer Used for removing slag after the cut.
Acetylene Regulator Used for adjusting the hose pressure from the acetylene cylinder to the torch. Has
a tank pressure gauge and a hose pressure gauge.
ANSWERS
Oxy Goggles Shade 5 Protective eyewear designed to protect from the light given off from gas
welding/cutting.
Acetylene A colorless flammable gas used in oxy-fuel welding and cutting. Is mixed with
acetone in the cylinder and burns at 5800 degrees F.
Propane A flammable gas used in oxy-fuel welding and cutting. Burns at 5300 degrees F
and is cheaper than acetylene.
Oxygen Pure gas that is mixed with the fuel gas to create a neutral flame. Is also used to
start the oxidation reaction in oxy-fuel cutting.
Acetylene Cylinder Gas tank containing acetylene gas. Is typically smaller than the oxygen cylinder. Is
usually red or black in color. Are usually filled to 225 psi.
, Oxygen Cylinder Gas tank containing pure oxygen gas. Is green in color. Full tanks have a pressure
of 2200 PSI.
Oxygen Hose Hose connecting the oxygen cylinder to the torch. Is green in color.
Acetylene Hose Hose connecting the acetylene cylinder to the torch. is red in color.
Oxygen and Acetylene Threads The different hoses have opposite threads so that the hose cannot be attached to
the wrong port on the torch or tank. Oxygen is right-handed, and acetylene is
left-handed or opposite threaded.
Spark/Friction Lighter Used for igniting the torch.
Chipping or Slag Hammer Used for removing slag after the cut.
Acetylene Regulator Used for adjusting the hose pressure from the acetylene cylinder to the torch. Has
a tank pressure gauge and a hose pressure gauge.
