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In sand casting of magnesium alloys, what is the amount of bentonite sand used in a British mix?

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in Casting-Forming-Welding II by (119k points)
In sand casting of magnesium alloys, what is the amount of bentonite sand used in a British mix?

(a) 3 lb

(b) 4 lb

(c) 5 lb

(d) 6 lb

I had been asked this question at a job interview.

The doubt is from Magnesium Alloys in portion Foundry Introduction & Materials of Casting-Forming-Welding II

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Correct choice is (b) 4 lb

Explanation: In the production of magnesium alloys, there are a variety of sands employed. For this, bentonite sand has to be used for the sand casting of the alloys. The amount of bentonite sand used is 4 lbs in both British as well as American mix.

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