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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Q. Wet seiving is employed, when the product contains __________ materials.

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Q. The filter medium resistance is controlled by

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Q. The unit of filter medium resistance is

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Q. During size reduction by a jaw crusher, the energy consumed decreases with the

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Q. Which of the following can be most effectively used for clarification of lube oil and printing ink?

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Q. Ultracentrifuges running at speeds upto 100000 rpm is normally used for the

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Q. For classification of potable (drinking) water, we use a __________ filter.

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Q. Hot, lumpy & abrasive materials are best transported by using a/an __________ conveyor.

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