Question: QUESTION 2 3 How to prevent aspiration? Select all the correct answer ( s ) . The sprue should be cylindrical. The liquid metal should
QUESTION
How to prevent aspiration? Select all the correct answers
The sprue should be cylindrical.
The liquid metal should be superheated to increase its fluidity.
The material of the sprue should be carefully selected.
The sprue should be tapered.
There should be a choking mechanism at the bottorn of the spure.
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