Workshop Technology
In shielded arc welding

Large electrode is used
Welding rod coated with fluxing material is used
None of the listed here
Welding rod coated with slag is used

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
During hot working of metals

All of the listed here
Mechanical properties are improved due to refinement of grains
Grain structure of the metal is refined
Porosity of the metal is largely eliminated

ANSWER DOWNLOAD EXAMIANS APP