Q. Use of natural draft cooling tower is practised, when the air has low

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Q. Pressure drop through plate tower as compared to that through packed tower, for the same duty will be

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Q. Dimension of mass diffusivity is the same as that of

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Q. Dorr thickener is an equipment used for

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Q. Steam distillation is used to separate

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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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