A heat treatment process carried out in a hydrogenated stmosphere to increase the strength and toughness of weldments

A hard facing operation to provide wear resistance properties to the surface of components

A process by which metals become brittle and fracture prone due to the induction and subsequent diffusion of hydrogen into the metal

A gas welding process using hydrogen and oxygen to generate heat for welding

Thoriated tungsten electrodes

Ceriated tungsten electrodes

Zirconiated tungsten electrodes

Lanthanated tungsten electrodes

26000 degree celsius

3000 degree celsius

10000 degree celsius

13000 degree Celsius

Arc welding process using two arcs established using a single electrode

Arc welding process in which arc is established and maintained using two carbon electrodes held with a special holder

Two joints simultaneously welded using a single electrode

None of the above

Atomic hydrogen welding

Laser beam welding

Tungsten inert gas welding

Electron beam welding