Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Consumes less power Results in increased capacity Both A and C Consumes more power Consumes less power Results in increased capacity Both A and C Consumes more power ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The process by which fine solids is removed from liquids is termed as Sedimentation Decantation Flocculation Classification Sedimentation Decantation Flocculation Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Work index is the gross energy (kWh/tonne of feed) necessary to reduce a very large feed to such a size that 80% of product particles will pass through a 0.1 mm screen. The value of work index determined for wet grinding should be multiplied with __________ to get the same for dry grinding. 1 1.34 0.5 4.34 1 1.34 0.5 4.34 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 0.02 μm/s 22.1 μm/s 1 μm/s 0.90 μm/s 0.02 μm/s 22.1 μm/s 1 μm/s 0.90 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, the Rotor shaft carrying hammers can be vertical or horizontal Minimum product size is 3 mm Feed may be highly abrasive (Moh's scale >5) Maximum feed size may be 50 mm Rotor shaft carrying hammers can be vertical or horizontal Minimum product size is 3 mm Feed may be highly abrasive (Moh's scale >5) Maximum feed size may be 50 mm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Trommels employ __________ for screening of materials. Woven wire screen Fibrous cloth Punched plate None of these Woven wire screen Fibrous cloth Punched plate None of these ANSWER DOWNLOAD EXAMIANS APP
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