Question

Which is not a machine molding process?

(a) Jolting

(b) Squeezing

(c) Sand slinging

(d) Hand molding

I have been asked this question during an online exam.

I'd like to ask this question from Methods of Ramming Mold Boxes topic in section Mold and Mold Making of Casting-Forming-Welding I

Answer 1

Correct option is (d) Hand molding

For explanation I would say: In jolting, a sand-filled mold is raised to a certain height and allowed to fall freely onto the ground converting potential energy into impact energy which leads to ramming of sand. In squeezing, a press is used to apply pressure through a plate. In the sand slinging, small-small amount of sand will be thrown that leads to localized ramming of sand. Hand molding is done without machines.