Mechanical Operations Mcqs for Chemical

Q.  Gravity stamp mill is meant for the ___________________ crushing?

a. Primary
b. Intermediate
c. Fine
d. Ultrafine


ANSWER: See Answer
 
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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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MCQs:  Rittinger’s crushing law states that_____________________?
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MCQs:  Paddle agitator_________________?
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MCQs:  During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration___________________?
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MCQs:  Ball mill is used for__________________?
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MCQs:  Size reduction of moulding powders, waxes, resins & gums are done in a _______________ mill?
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MCQs:  _______________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals?
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