As a rule, mortar ______ or it will be too weak to use.

A. cannot be used longer than 1 hour after mixing
B. that is too wet should be mixed longer
C. should not be tempered more than two times
D. should never be tempered when evaporation occurs


Answer: C

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A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B

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a. the bourgeoisie b. the nobility c. the educated members of third estate d. peasants

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5,873 + 1,907 + 446 =

A) 8,226 B) 8,236 C) 7,216 D) 7,226

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