Mechanical Operations The sphericity of a cylinder of 1 mm diameter and length 3 mm is 0.5 0.9 0.6 0.78 0.5 0.9 0.6 0.78 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. 4.34 1.34 0.5 1 4.34 1.34 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cyclones are used primarily for separating Solids Liquids Solids from solids Solids from fluids Solids Liquids Solids from solids Solids from fluids ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Angle of nip of the crushing rolls does not depend upon the Diameter of the rolls Product size Feed size Speed of the rolls Diameter of the rolls Product size Feed size Speed of the rolls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Production rate __________ with increased fineness, with a given energy input to the size reduction machine. Increases Decreases May increase or decrease; depends on the machine Remains unchanged Increases Decreases May increase or decrease; depends on the machine Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Crushing efficiency is the ratio of the Energy absorbed by the solid to the surface energy created by crushing Energy absorbed by the solid to that fed to the machine Surface energy created by crushing to the energy absorbed by the solid Energy fed to the machine to the surface energy created by crushing Energy absorbed by the solid to the surface energy created by crushing Energy absorbed by the solid to that fed to the machine Surface energy created by crushing to the energy absorbed by the solid Energy fed to the machine to the surface energy created by crushing ANSWER DOWNLOAD EXAMIANS APP
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