Mechanical Operations Grinding efficiency of a ball mill is of the order of __________ percent. 43835 90-95 75-80 40-50 43835 90-95 75-80 40-50 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Length/diameter ratio of a ball mill is < 1 1 1.5 > 1 < 1 1 1.5 > 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Can't be used for separation of fine suspended solids from a liquid Employ bowl of larger diameter Can not be operated under pressure/vacuum Operate at higher speed Can't be used for separation of fine suspended solids from a liquid Employ bowl of larger diameter Can not be operated under pressure/vacuum Operate at higher speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, the Feed may be highly abrasive (Moh's scale >5) Rotor shaft carrying hammers can be vertical or horizontal Minimum product size is 3 mm Maximum feed size may be 50 mm Feed may be highly abrasive (Moh's scale >5) Rotor shaft carrying hammers can be vertical or horizontal Minimum product size is 3 mm Maximum feed size may be 50 mm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A compressible cake has the Same porosity throughout the cake thickness Maximum porosity at the upstream side None of these Maximum porosity at the filter medium Same porosity throughout the cake thickness Maximum porosity at the upstream side None of these Maximum porosity at the filter medium ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Ultrafine Fine Secondary Primary Ultrafine Fine Secondary Primary ANSWER DOWNLOAD EXAMIANS APP
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