Q. The falling rate period in the drying of a solid is characterised by

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Q. In which of the following unit operations, the selectivity is an important parameter ?

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Q. Which of the following is an undesirable characteristic for the solvent used in gas absorption ?

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Q. Which of the following equipments is not used for liquid dispersion ?

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Q. __________ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower.

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Q. The expression, y(1 - x)/x(1 - y) is for

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Q. In physical terms, Schmidt number means

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Q. In case of liquids, the binary diffusivity is proportional to (where, T = temperature)

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Q. The diffusivity, Dᴀʙ (for component A diffusing in B) is equal to the diffusivity Dʙᴀ (for component B diffusing in A) for a binary mixture of

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Q. When both the fluids flow concurrently in an absorber, the slope of the operating line is

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Q. The percentage humidity is less than the relative humidity only at __________ percent humidity.

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Q. Back-trapping in a distillation column

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Q. Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

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Q. Milk is dried usually in a __________ dryer.

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Q. High pressure at the bottom of a distillation tower handling heat sensitive materials results in

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Q. Alcohol is dehydrated using __________ distillation.

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Q. Separation of two volatile liquids by distillation makes use of their

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Q. Which of the following increases during evaporative cooling process with recirculated water supply ?

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Q. Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.

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Q. At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent.

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