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 Volatile matter content Density separation Size Differential wettability Volatile matter content Density separation Size Differential wettability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by Φs = 6 dp Sp/Vp Φs = 6 Vp/dp sp Φs = Vp/dp sp Φs = dp Sp/Vp Φs = 6 dp Sp/Vp Φs = 6 Vp/dp sp Φs = Vp/dp sp Φs = dp Sp/Vp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultrafine grinders operate principally by Impact Slow compression Cutting action Attrition Impact Slow compression Cutting action Attrition ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Shape factor Surface area per unit mass Specific surface ratio Sauter diameter Shape factor Surface area per unit mass Specific surface ratio Sauter diameter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products. Roller Attrition Pebble Buhrstone Roller Attrition Pebble Buhrstone ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Feed material Type of crushing machine Neither A nor B Both A & B Feed material Type of crushing machine Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
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