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Multiple Choice

The moisture content defined by the equation w = (Ww / Ws) x 100 is called?

The concept here is moisture content expressed as a percentage of the dry weight. In the formula, Ww is the weight of water in the sample and Ws is the weight of the sample after all moisture has been removed (the dry weight). The ratio Ww/Ws tells you how much water is present per unit of dry solids, and multiplying by 100 converts that to a percent. This measurement is different from bulk density (mass per total volume), porosity (the fraction of volume that is void), and specific gravity (density relative to water). So the quantity defined by that equation is moisture content.

The concept here is moisture content expressed as a percentage of the dry weight. In the formula, Ww is the weight of water in the sample and Ws is the weight of the sample after all moisture has been removed (the dry weight). The ratio Ww/Ws tells you how much water is present per unit of dry solids, and multiplying by 100 converts that to a percent. This measurement is different from bulk density (mass per total volume), porosity (the fraction of volume that is void), and specific gravity (density relative to water). So the quantity defined by that equation is moisture content.