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Which of the following is the best method for the uniform ramming of moulding sand?

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in Casting-Forming-Welding I by (687k points)
Which of the following is the best method for the uniform ramming of moulding sand?

(a) Jolting

(b) Squeezing

(c) Sand slinging

(d) Hand moulding

The question was posed to me in a national level competition.

The origin of the question is Methods of Ramming Mold Boxes topic in division Mold and Mold Making of Casting-Forming-Welding I

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Best answer
Right choice is (c) Sand slinging

Easiest explanation: Sand slinging is defined as the combination of jolt and squeeze method of ramming, in which jolt-squeeze machines are used for the more uniform ramming. This is the method which is widely used in the ramming process, but the processes are expensive due to the application of various machines.

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