Mechanical Operations Grinding characteristic of a material is given by its Angle of repose Shatter index Abrasion index HGI Angle of repose Shatter index Abrasion index HGI ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen efficiency is Recovery Rejection Recovery/rejection None of these Recovery Rejection Recovery/rejection None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the Washing time only Square root of the velocity Filtration time only Square of the viscosity Washing time only Square root of the velocity Filtration time only Square of the viscosity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? Cresylic acid Calcium carbonate Copper sulphate Sodium carbonate Cresylic acid Calcium carbonate Copper sulphate Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same? 0.5 ∞ 1 0.5 ∞ 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The opening of a 200 mesh screen (Taylor series) is 74 mili-microns 0.0047 cm 0.0074 cm 0.0074 mm 74 mili-microns 0.0047 cm 0.0074 cm 0.0074 mm ANSWER DOWNLOAD EXAMIANS APP
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