Minnesota FFA Career Development Events Handbook

When you mix mortar using Portland cement, _____ is added to make the mix more workable and to improve its adherence qualities. ... Galvanized steel pipe has a coating of _____ on the outside to prevent rusting. A. Zinc. B. Nickel. C. Tin. D. Magnesium. 27. Pipe that is available in both flexible and rigid from is: ... C. stainless steel . D ... ................
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