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

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

ANSWER DOWNLOAD EXAMIANS APP

Workshop Technology
The purpose of a riser is to

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

ANSWER DOWNLOAD EXAMIANS APP