Question

Which of the following group of material type is used in mold making?

(a) Metallic only

(b) Non-Metallic only

(c) Both metallic as well as non-metallic

(d) Neither metallic nor non-metallic

The question was asked in unit test.

I'm obligated to ask this question of Mold Materials in section Molding and Core Sands of Casting-Forming-Welding I

Answer 1

The correct answer is (c) Both metallic as well as non-metallic

The explanation is: Both metallic as well as non-metallic materials are used for making molds.