Hamad Mechanical Operations 29/07/2021 A. Asbestos B. Rubber C. Non-metallic ores D. Limestone Related Mcqs: The specific surface of spherical particles is proportional to (where, Dp = diameter of particle)?A. D2 B. Dp C. 1/Dp D. 1/D2p... Chance process is used for the________________?A. Cleaning of coal B. Concentration of iron ore C. Concentration of pyrites D. Water treatment... Rittinger number which designates the new surface produced per unit of mechanical energy absorbed by the material being crushed, depends on the ______________________?A. State or manner of application of the crushing force B. Ultimate strength of the material C. Elastic constant of the material D. All A., B. and C.... For coarse reduction of hard solids, use ____________________?A. Impact B. Attrition C. Compression D. Cutting... Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the _________________?A. Blake jaw crusher B. Cage mill C. Stamp mill D. Bradford’s breaker...
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