Workshop Technology
For gas welding, the pressure desired at the welding torch for acetylene is

7 to 103 kN/m²
280 to 560 kN/m²
70 to 280 kN/m²
560 to 840 kN/m²

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
Lancing is the operation of

Cutting a sheet of metal through part of its length and then bending the cut portion
Bending a sheet of metal along a curved axis
Removal of metal to the desired shape from the edge of a plate
Cutting a sheet of metal in a straight line along the length

ANSWER DOWNLOAD EXAMIANS APP