MCQs: Which of the following is used for primary crushing of very hard lumpy materials ?
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MCQs: Fluid energy mill comes in the category of________________?
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MCQs: Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a__________________?
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MCQs: Wheat is ground into flour in a___________________?
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MCQs: Pick out the material having minimum Rittinger’s number?
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MCQs: About 2-3 hp, power per gallon of a thin liquid provides vigorous agitation in an agitator. ‘Power number’ in agitation is given by __________________?
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MCQs: A filter press is___________________?
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MCQs: The crushed material received for separation is called feed or_________________?
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MCQs: ______________ mill is not a revolving mill ?
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MCQs: Which of the following equations is Rittinger’s crushing law? (Where P = power required by the machine, m = feed rate, k = a constant, D̅ sa & D̅ sb = volume surface mean diameter of feed & product respectively) ?
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MCQs: For coarse reduction of hard solids, use ____________________?
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MCQs: _____________ mills are termed as impactors?
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MCQs: During the washing of cake_________________?
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MCQs: For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid ?
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MCQs: Feed size of ≥ 25 cms can be accepted by _______________________?
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MCQs: In a grinding operation, the limiting particle size is the size of the _______________ particle in the sample?
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MCQs: The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to___________________?
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MCQs: Which of the following is a continuous filter ?
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MCQs: In case of a revolving mill, wet grinding compared to dry grinding__________________?
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MCQs: The opening of a 200 mesh screen (Taylor series) is__________________?
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