Which of the following formulas is used for the determination of solid – McqOptions

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1.	Which of the following formulas is used for the determination of solid friction (fs) between the mould and casting during solidification?
A.	f<sub>s</sub> = ‚âà√≠‚Äö√†√´<sub>s</sub>-H
B.	f<sub>s</sub> = ‚âà√≠‚Äö√†√´<sub>s</sub>/H
C.	f<sub>s</sub> = ‚âà√≠‚Äö√†√´<sub>s</sub>+H
D.	f<sub>s</sub> = ‚âà√≠‚Äö√†√´<sub>s</sub>*H
Answer» E.

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