1. increases
2. decreases
3. remains same
4. none of these
increases
1. wastage of electrode
2. excessive pilling without weld metal
3. overhauling without penetration edges
4. all of these
all of these
1. gas welding
2. x-rays and gamma rays
3. micro waves
4. all of these
micro waves
1. gas welding
2. D.C. arc welding
3. metallic welding
4. thermit welding
metallic welding
1. carbon arc welding
2. submerged arc welding
3. TIC welding
4. MIG welding
submerged arc welding
1. gas welding
2. D.C. arc welding
3. submerged arc welding
4. thermit welding
submerged arc welding
1. gas welding
2. D.C. arc welding
3. submerged arc welding
4. thermit welding
submerged arc welding
1. gas welding
2. shielded arc welding
3. D.C. arc welding
4. argon arc welding
shielded arc welding
1. intense glare
2. sparks
3. infra-red rays
4. infra-red and ultra violet rays
infra-red and ultra violet rays
1. electroslag
2. submerged arc
3. MIG
4. TIG
electroslag