Many new paver surfaces are more durable than earlier versions because of what jointing material used in their installation?

a. concrete c. steel filings
b. polymeric sand d. stone dust


B
polymeric sand

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Insulation must protect from flashover damage and _____.

a. moisture damage b. impulse damage c. bearing damage d. tracking damage

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Ductile iron pipe cannot be cut with a(n) _____.

a. plasma arc torch b. abrasive cutoff saw c. soil pipe cutter d. hacksaw

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Which of the following methods is LEAST-Likely to be used to clean parts that have been removed from an engine or transmission?

A. Chemical cleaning B. Abrasive cleaning C. Thermal cleaning D. Dry brushing

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Seam welds are dimensioned by specifying either size or ____________________.

Fill in the blank(s) with the appropriate word(s).

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