Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Gives less wear on chamber walls Requires more energy Increases capacity Complicates handling of the product Gives less wear on chamber walls Requires more energy Increases capacity Complicates handling of the product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which one is a filter aid? None of these Calcined lime Convas fabric Diatomaceous earth None of these Calcined lime Convas fabric Diatomaceous earth ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the Size Differential wettability Volatile matter content Density separation Size Differential wettability Volatile matter content Density separation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately ? None of these Kick's law Bond's law Rittinger's law None of these Kick's law Bond's law Rittinger's law ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Kick's law assumes that the energy required for size reduction is proportional to the logarithm of the ratio between the initial and the final diameters. The unit of Kick's constant is KWh/sec. kg KW. sec/kg Kg/sec KWh/kg KWh/sec. kg KW. sec/kg Kg/sec KWh/kg ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For separation of sugar solution from settled out mud, we use a __________ filter. Centrifugal Sparkler Plate and frame Rotary drum vaccum Centrifugal Sparkler Plate and frame Rotary drum vaccum ANSWER DOWNLOAD EXAMIANS APP
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