Q. In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed

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Q. The cooling effect in a cooling tower can not be increased by

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Q. The value of Nᴀ/(Nᴀ + Nʙ) for steady state molecular diffusion of gas 'A' through non-diffusing gas 'B' is

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Q. The humid volume may be increased by increasing the

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Q. Pick out the wrong statement

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Q. When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is __________ distillation.

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Q. Leaching of uranium ore and gold ore is done in

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Q. Blowdown in a cooling tower

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Q. During constant rate period, the rate of drying decreases with the

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Q. Antibiotics are best handled in a

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Q. The fixed cost of a distillation column at minimum reflux ratio is

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Q. To get high tray efficiency

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Q. The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

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Q. Pick out the wrong statement. Generally for physical adsorption, a gas of

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Q. In most of the mechanically agitated liquid-liquid extractors, baffles or horizontal compartmental plates are provided, which helps in

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Q. Which of the following is an undesirable property in a tower packing ?

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Q. Water entrained by circulating air in cooling towers is termed as

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Q. A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is

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Q. With increase in temperature, the rate of leaching increases, because the

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Q. Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

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