To avoid cracking

To avoid porosity

To avoid distortion

To increase depth of penetration

Fused depth

Lack of fusion

Edge of the joint

Surface of the joint

Chisel

Try square

Chipping hammer

Ball pane hammer

Suitable for cast iron welding

Suitable for brass welding

Suitable for mild steel welding

Suitable for stellite, pipe welding

Not learning safety instructions

Not Checking on hose and gauge for damage

No checking of the cylinder

Work area free from flammable material