Mechanical Operations Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called Classification Clarification Decantation Sedimentation Classification Clarification Decantation Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For transporting pasty material, one will use a/an Screw colaveyor Bucket elevator Belt conveyor Apron conveyor Screw colaveyor Bucket elevator Belt conveyor Apron conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are Carbonates Bi-carbonates Silicates & phosphates Sulphates Carbonates Bi-carbonates Silicates & phosphates Sulphates ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) π(=A/D²) None of these AD/V π/6(=V/D³) π(=A/D²) None of these AD/V π/6(=V/D³) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not a wet classifier? None of these Sharpies supercentrifuge Hydrocyclones Dorr Oliver rake classifier None of these Sharpies supercentrifuge Hydrocyclones Dorr Oliver rake classifier ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a ball mill, Fine feed requires a larger ball Operating speed should be more than the critical speed None of these Coarse feed requires a larger ball Fine feed requires a larger ball Operating speed should be more than the critical speed None of these Coarse feed requires a larger ball ANSWER DOWNLOAD EXAMIANS APP
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