Question

Which of the following methods is used to detect a concentration of the metal?

(a) Check triangle method

(b) Euler’s method

(c) Finn’s method

(d) Check circle method

I have been asked this question in semester exam.

Question is from Product Design for Sand Castings in chapter Pouring – Gating Design, Melting Furnaces, Melting and Casting Quality of Casting-Forming-Welding I

Answer 1

The correct choice is (d) Check circle method

The best I can explain: The check circle method is normally used for detecting the concentration of the metal to avoid the shrinkage problems which particularly severe in junctions by reducing the concentration of metal at joints. A concentration of metal always occurs at the point where two walls of equal thickness come together.