Engine : General Subjects - 1718/1128
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| Which of the following procedures would be correct when first lighting-off an oxyacetylene torch? |
| A) Open the acetylene valve very slightly to light-off and then open and adjust the oxygen valve. |
| B) Open the oxygen valve very slightly to light-off and then open and adjust the acetylene valve. |
| C) Open the acetylene valve very slightly and the oxygen valve the same amount to light-off. |
| D) Open the oxygen valve wide open and the acetylene valve slightly to light-off. |
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