Q. Optimum ratio of operating speed to critical speed of a trommel is

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Q. The process opposite to 'dispersion' is termed as the

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Q. The cake resistance increases steadily with the time of filtration in a plate and frame filter employing constant __________ filtration.

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Q. Grinding efficiency of a ball mill is of the order of __________ percent.

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Q. Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate)

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Q. Which one is a filter aid ?

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Q. To remove dirt from the flowing fluid, we use a

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Q. Which of the following crushers can be considered as a combination of a jaw crusher and a roller crusher ?

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Q. In a roll crusher, both the rolls

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Q. Tube mill compared to ball mill

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Q. For the preliminary breaking of hard rock, we use a

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Q. Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration.

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Q. To produce talcum powder, use

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Q. Angle of nip of the crushing rolls does not depend upon the

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Q. Paddle agitator

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Q. Pick out the wrong statement.

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Q. Gummy & sticky materials like molasses, sugar etc. are best transported/handled by using a __________ conveyor.

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Q. Gelatinous solid (which plug the septum) can be filtered by a __________ filter.

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Q. During the washing of cake

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Q. The opening of a 200 mesh screen (Taylor series) is

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