Question

Which of the following is not a type of moulding sand?

(a) Red sand

(b) Natural sand

(c) Synthetic sand

(d) Loam sand

I got this question in an online quiz.

This intriguing question originated from Molding Sands in section Molding and Core Sands of Casting-Forming-Welding I

Answer 1

Right option is (a) Red sand

For explanation I would say: Red sand is not counted among the moulding sands, whereas natural sand, synthetic sand and loam sand are various other types of moulding sand, which can be effectively used for casting processes.