Mass Transfer
Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

Humid heat
Specific heat
Sensible heat
Latent heat

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Mass Transfer
Blowdown in a cooling tower

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

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