-
Group-I
P. Arc welding
Q. Friction welding
R. Solid state Welding
S. Laser welding
Group-II
1. Diffusion
2. Polarity
3. Focusing
4. Kinetic energy
-
- P Q R S
4 1 3 2 - P Q R S
3 2 4 3 - P Q R S
1 2 4 3 - P Q R S
2 4 1 3
- P Q R S
Correct Option: D
Arc welding - Polarity
Friction welding - Kinetic energy
Solid state welding - Diffusion
Laser welding - Focusing
