Mechanical Operations Mcqs for Chemical


Q.  Use of ‘grinding aids’ is done in _______________ grinding?

a. Dry
b. Wet
c. Ultrafine
d. Intermediate


ANSWER: See Answer
 
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MCQs:  The ratio of the actual mesh dimension of Taylor series to that of the next smaller screen is_______________?
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MCQs:  The energy consumed by a ball mill depends on__________________?
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MCQs:  Size reduction of asbestos and mica is done by____________________?
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MCQs:  In case of a hammer crusher, the final product size depends on the____________________?
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MCQs:  Tube mill compared to ball mill_______________________?
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MCQs:  Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about________________?
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MCQs:  To get ultrafine particles, the equipment used is a _________________?
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MCQs:  Kick’s law assumes that the energy required for size reduction is proportional to the logarithm of the ratio between the initial and the final diameters. The unit of Kick’s constant is_________________?
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MCQs:  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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MCQs:  In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the__________________?
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MCQs:  The sphericity of a solid particle of cubical shape is ___________________?
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MCQs:  To remove dirt from the flowing fluid, we use a ____________________?
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MCQs:  The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a __________________?
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MCQs:  Which of the following may prove unsuitable for filtering volatile liquids ?
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MCQs:  A screen is said to be blinded, when the___________________?
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MCQs:  Wet grinding in a revolving mill ______________ as compared to dry grinding ?
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MCQs:  Which of the following is not a part of the Blake jaw crusher ?
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MCQs:  Float and sink test determines the possibility of cleaning of coal by a process based on the___________________?
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MCQs:  Cumulative analysis for determining surface is more precise than differential analysis, because of the_______________?
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MCQs:  Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity ?
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