Workshop Technology
In order to get uniform thickness of the plate by rolling process, one provides

Antifriction bearings
Offset on the rolls
Hardening of the rolls
Camber on the rolls

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
The purpose of a gate is to

Feed the molten metal to the casting in order to compensate for the shrinkage
Act as a reservoir for the molten metal
Delivers molten metal from pouring basin to gate
Delivers molten metal into the mould cavity

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
During hot working of metals

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

ANSWER DOWNLOAD EXAMIANS APP