Q. Float and sink test determines the possibility of cleaning of coal by a process based on the

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Q. For raschig rings, the sphericity is

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Q. For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns.

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Q. __________ mills are termed as disintegrators.

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Q. Supporting legs of a plate and frame filter is normally made of

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Q. During filtration operation, the filtrate encounters the resistance of the

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Q. Filtration rate does not depend upon the

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Q. Which of the following is a fine crusher?

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Q. __________ is a cohesive solid.

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Q. The optimum moisture content in solids to be crushed/ground ranges from __________ percent.

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Q. Use of grinding aids results in the

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Q. A belt conveyor used for the transportation of materials can

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Q. Which of the following is not used as a surface active agent in a flocculation operation?

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Q. __________ mill is not a revolving mill.

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Q. For the transportation of ultrafine particles, the equipment used is a........conveyor.

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Q. Limestone is normally crushed in a

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Q. Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ).

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Q. Pick out the correct statement.

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Q. The main differentiation factor between tube mill and ball mill is the

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Q. Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface.

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