Mechanical Operations Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its Easier grindability High power consumption in grinding None of these Poor grindability Easier grindability High power consumption in grinding None of these Poor grindability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for German standard screens (DIN 1171) etc All of these American standard screens (ASTM and Tyler standard screens) British standard screens German standard screens (DIN 1171) etc All of these American standard screens (ASTM and Tyler standard screens) British standard screens ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Width and speed of a conveyor belt depends upon the __________ of the material. Neither A nor B Lump size Both A & B Bulk density Neither A nor B Lump size Both A & B Bulk density ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a batch sedimentation equipment? Dry cyclone separator Dust catcher Rotary sprayer scrubber Filter thickener Dry cyclone separator Dust catcher Rotary sprayer scrubber Filter thickener ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. None of these Middling Tailing Concentrate None of these Middling Tailing Concentrate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 0.5 Wi Wi 1.34 Wi 3.34 Wi 0.5 Wi Wi 1.34 Wi 3.34 Wi ANSWER DOWNLOAD EXAMIANS APP
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