Mass Transfer
Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture?

Anthracite coal
Rag paper
Bamboo
Inorganic solids

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Mass Transfer
Blowdown in a cooling tower

Increases the scale forming tendencies of water
All of these
Is undesirable
Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities

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