Which of the following is not a function of a core?
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Cores are subjected to severe thermal and mechanical conditions.
Which of the following is a function of a core in casting?
A permeability of a core should be _________
If a web of internal passageways and chambers is to be constructed which of the following element is most obsolete for use?
Which of the following statement is true?
Why are core prints added to the patterns when cores are used?
Which of the following is not a core machine?
Which cores are made manually in hand filled core boxes?
Weak cores are reinforced using what?
In shell core making, the core box is heated up to what temperature?
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