Question

How much should fuel oil be added to increase the moulding ability of sand?

(a) 0.01% – 0.1%

(b) 0.02% – 0.2%

(c) 0.03% – 0.3%

(d) 0.04% – 0.4%

I had been asked this question in examination.

I want to ask this question from Bonding Theory topic in chapter Molding and Core Sands of Casting-Forming-Welding I

Answer 1

Correct choice is (a) 0.01% – 0.1%

Explanation: Fuel oils are known to have great properties in them. Fuel oils are helpful in adding to the increase of the moulding ability of sand. It can be added in the range of 0.01% to 0.1%.