Question

How are core manufactured in casting?

(a) Cores are manufactured from a pattern in the same way as of mold

(b) Cores are manufactured by machining process

(c) Cores are manufactured by traditional methods

(d) Cores are not manufactured, they are found naturally

The question was posed to me during an interview for a job.

My doubt stems from Finishing of Cores topic in division Core and Core Making of Casting-Forming-Welding I

Answer 1

Right choice is (a) Cores are manufactured from a pattern in the same way as of mold

Easiest explanation: The manufacturing of cores is similar to mold making and ramming.