Mechanical Operations increasing the capacity of a screen __________ the screen effectiveness. Decreases None of these Does not effect Increases Decreases None of these Does not effect Increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Both A & B Surface active agent Neither A nor B Electrolyte Both A & B Surface active agent Neither A nor B Electrolyte ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate) 1/R S 1/μ All of these 1/R S 1/μ All of these ANSWER DOWNLOAD EXAMIANS APP
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 Which of the following is not used as filter aid? Rice husk Diatomaceous earth Purified wood cellulose Asbestos Rice husk Diatomaceous earth Purified wood cellulose Asbestos ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Crushing of mineral particles is accomplished in a 'cage mill', when one or more alloy steel bars are revolved in opposite directions. It is a type of __________ mill. None of these Vibratory Impact Roll None of these Vibratory Impact Roll ANSWER DOWNLOAD EXAMIANS APP
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