1. too high welding current
2. carburising flame
3. netutral flame
4. both (a) and (b)
too high welding current
1. high welding speed
2. dirty metal surface
3. improper current
4. lock of flux
improper current
1. high welding speed
2. low welding speed
3. wrong size speed
4. poor base metal
poor base metal
1. A.C. current
2. D.C. current
3. both(a) and(b)
4. none of these
D.C. current
1. spot welding
2. seam welding
3. forge welding
4. laser welding
forge welding
1. TIG welding
2. MIG welding
3. Laser welding
4. Plasma welding
Laser welding
1. thermit welding
2. arc welding
3. laser welding
4. all of these
laser welding
1. 2 mm
2. 3 mm
3. 6 mm
4. 10 mm
3 mm
1. heavy industry
2. structural work
3. process industry
4. electronic industry
electronic industry
1. Little preparation is required for joints
2. Dissimilar metal can be welded
3. It is best suited for welding of plastics
4. Any type of configuration can be welded
Any type of configuration can be welded