Mechanical Operations Which of the following may prove unsuitable for filtering volatile liquids? Vacuum filter Centrifugal filter Gravity filter Pressure filter Vacuum filter Centrifugal filter Gravity filter Pressure filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size measurement of ultrafine particles can be best expressed in terms of Surface area per unit mass Centimetre Screen size Micron Surface area per unit mass Centimetre Screen size Micron ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of 'scrappers'? Screw conveyor Flight conveyor Both B and C Bucket conveyor Screw conveyor Flight conveyor Both B and C Bucket conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 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 Kg/sec KW. sec/kg KWh/sec. kg KWh/kg Kg/sec KW. sec/kg KWh/sec. kg KWh/kg ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size ) S/c S . c 1/s . c C/s S/c S . c 1/s . c C/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's crushing law states that 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 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 For a given machine and feed, crushing efficiency is dependent on the size of the feed & 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 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 For a given machine and feed, crushing efficiency is dependent on the size of the feed & product ANSWER DOWNLOAD EXAMIANS APP
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