Question

Dry sand moulds have high strength than the green sand moulds to form large castings.

(a) True

(b) False

This question was addressed to me in an internship interview.

Origin of the question is Types of Sand Moulds in division Pattern Materials & Moulding Sand Tests of Foundry and Forging

Answer 1

Correct answer is (a) True

The explanation is: Dry sand moulds gave higher strengths than the green sand mould and are preferred because they are less likely to be damaged during handling. Hence they are generally used for medium and large castings.