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【Daily Question】Utilities - Civil Engineering - 20190415

2019-04-15View Original

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To prepare 1 m3 of cement mortar, 0.33 m3 of cement is required. The bulk density of cement is 1200 kg/m3, and there is a 3% loss during mixing. Therefore, the amount of cement needed per cubic meter of mortar is (  ) kg.   A、369   B、407.9   C、384.5   D、423.7    【Answer】B   【Explanation】The weight of 0.33 m3 of cement is 0.33*1200=396 kg; adding a 3% loss gives 396*1.03=407.9 kg.

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