Mechanical Operations The specific surface of sherical particles is proportional to (where, Dp = diameter of particle). Dp D²p 1/D²p 1/Dp Dp D²p 1/D²p 1/Dp 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 Vp/dp sp Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = dp Sp/Vp Φs = 6 Vp/dp sp Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = dp Sp/Vp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following crushing laws is most accurately applicable to the fine grinding of materials ? Kick's law Bond's crushing law Rittinger's law None of these Kick's law Bond's crushing law Rittinger's law None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The unit of specific cake resistance is Cm/gm Cm/gm² Gm/gm Gm/cm² Cm/gm Cm/gm² Gm/gm Gm/cm² ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gravity stamp mill is meant for the __________ crushing. Intermediate Ultrafine Primary Fine Intermediate Ultrafine Primary Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pick out the wrong statement pertaining to the roll crushers. Maximum feed size determines the required roll diameter For hard material's crushing, the reduction ratio should not exceed 4 Both the rolls run necessarily at the same speed Reduction ratio and differential roll speed affect production rate & energy consumed per unit of surface produced Maximum feed size determines the required roll diameter For hard material's crushing, the reduction ratio should not exceed 4 Both the rolls run necessarily at the same speed Reduction ratio and differential roll speed affect production rate & energy consumed per unit of surface produced ANSWER DOWNLOAD EXAMIANS APP
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