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For gas welding, either the face shield or the lenses of the
safety glasses must be an approved shade__filter - ✔✔b.
3 to 6
Most worksite fires caused by welding or cutting are
started by - ✔✔d. Cutting Torches
When mixed with air or oxygen, __will explode at much
lower concentrations than any other fuel - ✔✔c. Acetylene
When pure oxygen is combined with fuel gases, the pure
oxygen produces - ✔✔d. A high temperature flame
needed for flame cutting
1
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