Question

The Nobake mould have a higher strength as compared to other moulds due to _________

(a) Its higher moisture content

(b) Its lower moisture content

(c) The property to withstand higher metallostatic pressures during casting

(d) The property to adapt to any volume

This question was addressed to me in quiz.

This intriguing question comes from Molding Processes topic in portion Mold and Mold Making of Casting-Forming-Welding I

Answer 1

The correct choice is (c) The property to withstand higher metallostatic pressures during casting

The best I can explain: The Nobake moulding process provides a good strength of mould, hence, it can withstand the metallostatic pressures and can give good dimensional tolerances.