Question

What is the water content in light to medium size malleable iron castings?

(a) 3.2%

(b) 4.2%

(c) 5.2%

(d) 6.2%

I got this question during an interview for a job.

This interesting question is from Preparation of Core Mix in portion Molding and Core Sands of Casting-Forming-Welding I

Answer 1

The correct option is (b) 4.2%

The best I can explain: The water content in terms of percentage composition in light to medium size malleable iron castings is calculated to be not much in it. The amount of water content found in the casting is about 4.2%.