Mechanical Operations Size measurement of ultrafine particles can be best expressed in terms of Surface area per unit mass Micron Centimetre Screen size Surface area per unit mass Micron Centimetre Screen size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 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? Cylinder (L/D = 1) Cube Raschig rings Sphere Cylinder (L/D = 1) Cube Raschig rings Sphere ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sulphuric acid mist is arrested by using a __________ scrubber. Packed wet Co-current Hollow wet Venturi Packed wet Co-current Hollow wet Venturi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Fick's law relates to Feed size Final particle size None of these Energy consumption Feed size Final particle size None of these Energy consumption ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate) All of these 1/R 1/μ S All of these 1/R 1/μ S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's crushing law states that Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created ANSWER DOWNLOAD EXAMIANS APP
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