Q. Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill.

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Q. Particle size range in which dust catcher (gravity settling chamber) works most effectively and efficiently is __________ microns.

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Q. __________ centrifuge is the most suitable for separation of non-friable crystals.

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Q. For benefication of iron ore, the most commonly used method is

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Q. The capacity of a gyratory crusher is __________ that of a jaw crusher with the same gape, handling the same feed & for the same product size range.

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Q. In classification, particles are said to be equal settling, if they have the same terminal velocities in the

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Q. Dispersion of a gas through liquid is done by using a

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Q. Work index is defined as the

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Q. Removal of activated carbon from glycerine is done by

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Q. A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream.

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Q. Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called

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Q. Reciprocal of sphericity is termed as the

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Q. With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge

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Q. Pick out the wrong statement.

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Q. In case of a plate and frame filter press, filtrate flow through the cake follows __________ flow.

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Q. Which of the following is a batch sedimentation equipment ?

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Q. The most suitable equipment for the transportation of 200 mesh size particles is a

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Q. Which of the following is not used as filter aid?

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Q. Raw materials are charged in the iron blast furnace using

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