1. In gas welding, the torch should be held at an angle of \[30{}^\circ \] to \[45{}^\circ \] from the horizontal plane |
2. In gas welding, the size of the torch depends upon the thickness of metal to be formed |
3. Drag in gas cutting is the time difference between heating of the plate and starting the oxygen gas for cutting. |
A) 1, 2 and 3
B) 1 and 2
C) 2 and 3
D) 1 and 3
Correct Answer: A
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