question_answer

Consider the following statements:

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.

Which of the statements given above are correct?

A) 1, 2 and 3                     

B) 1 and 2

C) 2 and 3            

D) 1 and 3