Question

What is the baked tensile strength of light to medium size malleable iron castings?

(a) 4.5 kg/cm^2

(b) 5.5 kg/cm^2

(c) 6.5 kg/cm^2

(d) 7.5 kg/cm^2

I got this question during a job interview.

I want to ask this question from Preparation of Core Mix topic in section Molding and Core Sands of Casting-Forming-Welding I

Answer 1

The correct option is (b) 5.5 kg/cm^2

Explanation: There are many types of cast irons which have differing properties, according to the type of manufacture and the quantity of ingredients used. The baked tensile strength of light to medium size malleable iron casts is 5.5 kg/cm^2.