Question

The patterns can be __________ after the pattern is prepared from shell molding.

(a) Scrapped

(b) Non-reused

(c) Reused

(d) Recycled

This question was addressed to me at a job interview.

My question is based upon Core and Shell Moulding in division Moulding Machines & Special Moulding Processes of Foundry and Forging

Answer 1

Right option is (c) Reused

Easy explanation: The pattern is placed in a mould in shell casting is a thin-walled shell which is created using a sand resin and applying it all over the pattern. This makes the pattern to be easily reusable for the next subsequent processes.