Q. The specific surface of sherical particles is proportional to (where, Dₚ = diameter of particle).

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Q. Wheat is ground into flour in a

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Q. Gravity stamp mill is meant for the __________ crushing.

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Q. Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the

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Q. Toothed roll crushers achieve size reduction by

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Q. Pick out the wrong statement:

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Q. Soft & non-abrasive materials can be made into fines by

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Q. In constant pressure filtration,

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Q. The critical speed of a trommel (N) is related to its dia (D) as

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Q. Which of the following minerals is not subjected to magnetic separation method?

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Q. Which of the following is not a revolving/tumbling mill used for size reduction?

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Q. __________ mills fall in the category of tumbling mills.

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Q. Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre, V = speed of the conveyor in metre/second, ρ = bulk density of material in kg/m³)

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Q. Which of the following is not a cutting machine?

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Q. Weber number is significant and is concerned with the

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Q. Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid.

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Q. Cake resistance is

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Q. In paint industries, blending of light paste is done by using a

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Q. A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is

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Q. __________ is used for producing a thick suspension from a thin slurry.

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