CUT406 - Core Principles of Oxy-Fuel Gas
Cutting, Flame Adjustment, Torch Operation,
Metal Reaction, and Safety Procedures
________ contains little or no un-oxidized iron. - A, soft slag✅✅✅
________ is mixed with the fuel gas to forms a high-temperature preheating flame. -
Oxygen✅✅✅
________ is produced by the metal as it is burned. - C, heat✅✅✅
________ is when metal bend or twists out of shape as a result of being heated during the cutting
process. - D, distortion✅✅✅
________ slag is attached solidly to the bottom edge of a cut and requires chipping and grinding to
remove. - Hard✅✅✅
________ slag is very porous, brittle, and easy to remove. - Soft✅✅✅
A cutting torch should never be used to cut open a sealed container. - True✅✅✅
A machine cutting torch is sometimes referred to as a(n) ________. - B, line burner✅✅✅
A slight forward torch angle keeps the tip clean for a longer period of time. - True✅✅✅
Acetylene can be used in any tip. - False✅✅✅
Acetylene is used in tip having ________ preheat holes. - B, one to six✅✅✅
Any subtle physical movement can cause a ripple in the cut. - True✅✅✅
Chrome plating causes spatter to stick to the tip, prolonging clean-up. - False✅✅✅
Goggle or any other suitable eye protection must be used for flame cutting. - True✅✅✅
If ________ is used in tips designed for other fuel gases, the tip may overheat. - ✅✅✅
If a cut is to be started in a place other than the edge of the plate, ________. - A, the inner cones
should be held as close as possible to the metal✅✅✅
If a large cutting tip pops when the acetylene is turned off, ________. - ✅✅✅
Cutting, Flame Adjustment, Torch Operation,
Metal Reaction, and Safety Procedures
________ contains little or no un-oxidized iron. - A, soft slag✅✅✅
________ is mixed with the fuel gas to forms a high-temperature preheating flame. -
Oxygen✅✅✅
________ is produced by the metal as it is burned. - C, heat✅✅✅
________ is when metal bend or twists out of shape as a result of being heated during the cutting
process. - D, distortion✅✅✅
________ slag is attached solidly to the bottom edge of a cut and requires chipping and grinding to
remove. - Hard✅✅✅
________ slag is very porous, brittle, and easy to remove. - Soft✅✅✅
A cutting torch should never be used to cut open a sealed container. - True✅✅✅
A machine cutting torch is sometimes referred to as a(n) ________. - B, line burner✅✅✅
A slight forward torch angle keeps the tip clean for a longer period of time. - True✅✅✅
Acetylene can be used in any tip. - False✅✅✅
Acetylene is used in tip having ________ preheat holes. - B, one to six✅✅✅
Any subtle physical movement can cause a ripple in the cut. - True✅✅✅
Chrome plating causes spatter to stick to the tip, prolonging clean-up. - False✅✅✅
Goggle or any other suitable eye protection must be used for flame cutting. - True✅✅✅
If ________ is used in tips designed for other fuel gases, the tip may overheat. - ✅✅✅
If a cut is to be started in a place other than the edge of the plate, ________. - A, the inner cones
should be held as close as possible to the metal✅✅✅
If a large cutting tip pops when the acetylene is turned off, ________. - ✅✅✅
