Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Ball mill Gyratory crusher Tube mill Toothed roll crusher Ball mill Gyratory crusher Tube mill Toothed roll crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Removal of activated carbon from glycerine is done by Batch basket centrifuge Rotary vacuum filter Plate and frame filter None of these Batch basket centrifuge Rotary vacuum filter Plate and frame filter None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cumulative analysis for determining surface is more precise than differential analysis, because of the Assumption that all particles in a single fraction are equal in size, is not needed Assumption that all particles in a single fraction are equal in size None of these Fact that screening is more effective Assumption that all particles in a single fraction are equal in size, is not needed Assumption that all particles in a single fraction are equal in size None of these Fact that screening is more effective ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. 50 500 5 5000 50 500 5 5000 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter. Rotary Plate & frame Vacuum Sand Rotary Plate & frame Vacuum Sand ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a ball mill, Fine feed requires a larger ball None of these Coarse feed requires a larger ball Operating speed should be more than the critical speed Fine feed requires a larger ball None of these Coarse feed requires a larger ball Operating speed should be more than the critical speed ANSWER DOWNLOAD EXAMIANS APP
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