Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. Middling Concentrate None of these Tailing Middling Concentrate None of these Tailing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations As particle size is reduced Screening becomes progressively more difficult None of these Screening becomes progressively easier Capacity and effectiveness of the screen is increased Screening becomes progressively more difficult None of these Screening becomes progressively easier Capacity and effectiveness of the screen is increased ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Limestone is normally crushed in a Hammer crusher Tube mill Ball mill Roll crusher Hammer crusher Tube mill Ball mill Roll crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to The change in volume due to crushing The new surface created None of these The size reduction ratio The change in volume due to crushing The new surface created None of these The size reduction ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re-1.0 Po ∝ Re1.0 Po ∝ Re0.0 Po ∝ Re0.5 Po ∝ Re-1.0 Po ∝ Re1.0 Po ∝ Re0.0 Po ∝ Re0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mixer is used for devulcanisation of rubber scrap & making water dispersion & rubber solution. Tumbler Banbery Rubbon blender Muller Tumbler Banbery Rubbon blender Muller ANSWER DOWNLOAD EXAMIANS APP
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