Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 1.34 Wi Wi 0.5 Wi 3.34 Wi 1.34 Wi Wi 0.5 Wi 3.34 Wi 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 1 μm/s 0.02 μm/s 0.90 μm/s 22.1 μm/s 1 μm/s 0.02 μm/s 0.90 μm/s 22.1 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Trough washer Baum jig washer Froth floatation Spiral separator Trough washer Baum jig washer Froth floatation Spiral separator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Crushing efficiency of a machine ranges between __________ percent. 5 to 10 20 to 25 50 to 70 0.1 to 2 5 to 10 20 to 25 50 to 70 0.1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In bag filters, filter fabrics are never made of Metallic wire woven mesh Cotton fibres Polyester fibres Nylon fibres Metallic wire woven mesh Cotton fibres Polyester fibres Nylon fibres ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gold ore concentration is mostly done using Tabling Froth floatation Jigging Elutriation Tabling Froth floatation Jigging Elutriation ANSWER DOWNLOAD EXAMIANS APP
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