Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Requires more energy Gives less wear on chamber walls Increases capacity Complicates handling of the product Requires more energy Gives less wear on chamber walls Increases capacity Complicates handling of the product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pine oil used in froth floatation technique acts as a/an Modifier Frother Collector Activator Modifier Frother Collector Activator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Concentration ratio Separation efficiency Selectivity index None of these Concentration ratio Separation efficiency Selectivity index None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The main differentiation factor between tube mill and ball mill is the Length to diameter ratio Operating speed Final product size Size of the grinding media Length to diameter ratio Operating speed Final product size Size of the grinding media ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A straight line is obtained on plotting reciprocal of filtration rate vs. the volume of filtrate for __________ flow of filtrate. Compressible cake and turbulent Compressible cakes and laminar Incompressible cake and laminar Incompressible cake and turbulent Compressible cake and turbulent Compressible cakes and laminar Incompressible cake and laminar Incompressible cake and turbulent ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a surface active agent in a flocculation operation? Quartz Lime Alumina Sodium silicate Quartz Lime Alumina Sodium silicate ANSWER DOWNLOAD EXAMIANS APP
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