Mechanical Operations In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill. 35 50 70 85 35 50 70 85 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is 0.62 0.5 0.58 0.68 0.62 0.5 0.58 0.68 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of sherical particles is proportional to (where, Dp = diameter of particle). D²p Dp 1/D²p 1/Dp D²p Dp 1/D²p 1/Dp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Addition of filter aid to the slurry before filtration is done to ...... of the cake. Decrease the porosity Increase the porosity Increase the compressibility co-efficient Decrease the compressibility co-efficient Decrease the porosity Increase the porosity Increase the compressibility co-efficient Decrease the compressibility co-efficient ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The cake resistance increases steadily with the time of filtration in a plate and frame filter employing constant __________ filtration. Both A & B Rate Neither A nor B Pressure Both A & B Rate Neither A nor B Pressure ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The reduction ratio for grinders is defined as(where, Df and Dp are average diameters of feed and product respectively). Df/Dp None of these Dp/Df Df - Dp Df/Dp None of these Dp/Df Df - Dp ANSWER DOWNLOAD EXAMIANS APP
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