Mechanical Operations Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the Size Density separation Differential wettability Volatile matter content Size Density separation Differential wettability Volatile matter content ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream. Thickener Classifier Clarifier Strainer Thickener Classifier Clarifier Strainer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called Froth floatation Clarification Thickening Classification Froth floatation Clarification Thickening Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Angle of nip of the crushing rolls does not depend upon the Speed of the rolls Diameter of the rolls Feed size Product size Speed of the rolls Diameter of the rolls Feed size Product size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is 1 ?2 1.5 None of these 1 ?2 1.5 None of these 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
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