Q. In case of grinding in a ball mill

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Q. The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³)

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Q. Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation.

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Q. In the cyclone separator used for separation of dust from dust laden gas, the gas

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Q. Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the

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Q. The material is crushed in a gyratory crusher by the action of

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Q. Cartridge filters are termed as 'edge' filters, because of the fact that the

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Q. Vibrating screens have capacity in the range of __________ tons/ft² .mm mesh size.

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Q. Cumulative analysis for determining surface is more precise than differential analysis, because of the

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Q. To remove very small amount of tiny solid impurities from liquid, we use a

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Q. Screw conveyors are

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Q. Fick's law relates to

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Q. __________ mill is normally used for grinding of talc.

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Q. Colloidal mills are used for __________ grinding.

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Q. Fluid medium used in the classification technique of mineral beneficiation is

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Q. The maximum slope of a belt conveyor can be

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Q. The equivalent diameter of channel of a constant non-circular cross-section of 3 cm by 6 cm will be __________ cms.

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Q. Which of the following may prove unsuitable for filtering volatile liquids ?

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Q. Mass flow of granular solid (M) through a circular opening of dia, D follows

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Q. Sauter mean diameter is the same as the __________ mean diameter.

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