Question

Core boxes are made out of which pattern?

(a) Plaster pattern

(b) Wax pattern

(c) Metal patterns

(d) Polystyrene patterns

The question was posed to me in a job interview.

My doubt is from Pattern Materials in section Pattern and Pattern Making of Casting-Forming-Welding I

Answer 1

Right answer is (a) Plaster pattern

Explanation: A pattern is basically a duplicate of the object that has to be casted. It is one of the applications of plaster pattern to make core boxes and other small and intricate patterns.