Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same? 1 ∞ 0.5 1 ∞ 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mixer is used for devulcanisation of rubber scrap & making water dispersion & rubber solution. Rubbon blender Banbery Muller Tumbler Rubbon blender Banbery Muller Tumbler 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 = dp Sp/Vp Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = 6 Vp/dp sp Φs = dp Sp/Vp Φs = 6 dp Sp/Vp Φs = Vp/dp sp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a plate and frame filter press, filtrate flow through the cake follows __________ flow. None of these Laminar Plug Turbulent None of these Laminar Plug Turbulent ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Secondary Primary Fine Ultrafine Secondary Primary Fine Ultrafine 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 Silicates & phosphates Carbonates Bi-carbonates Sulphates Silicates & phosphates Carbonates Bi-carbonates Sulphates ANSWER DOWNLOAD EXAMIANS APP