Question

Green sand cores are not suitable for producing very complex shapes of castings.

(a) True

(b) False

The question was posed to me in an interview for internship.

This intriguing question comes from Core Application in division Core and Core Making of Casting-Forming-Welding I

Answer 1

Right answer is (a) True

The explanation: In the production of very complex shapes of castings, green sand cores are not compatible as they are made of low strength and cannot bear forces for a long period of time. So generally, dry sand cores are commonly used for producing complex shapes of castings instead of green sand cores.