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 Wi 0.5 Wi 1.34 Wi 3.34 Wi Wi 0.5 Wi 1.34 Wi 3.34 Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The sphericity of a cylinder of 1 mm diameter and length 3 mm is 0.6 0.78 0.9 0.5 0.6 0.78 0.9 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) 2 D D 1.5 D 0.5 D 2 D D 1.5 D 0.5 D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A compressible cake has the Maximum porosity at the upstream side Same porosity throughout the cake thickness Maximum porosity at the filter medium None of these Maximum porosity at the upstream side Same porosity throughout the cake thickness Maximum porosity at the filter medium None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid? Blake-Plummer equation None of these Kozney-Karman equation Leva Blake-Plummer equation None of these Kozney-Karman equation Leva ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Toothed roll crushers achieve size reduction by Both A & B Tearing (shear) and compression Neither A nor B Impact and attrition Both A & B Tearing (shear) and compression Neither A nor B Impact and attrition ANSWER DOWNLOAD EXAMIANS APP
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