Mechanical Operations Driving force in case of filtration by a centrifuge is the Formation of highly porous cake Narrow diameter of the vessel Speed of the centrifuge Centrifugal pressure exerted by the liquid Formation of highly porous cake Narrow diameter of the vessel Speed of the centrifuge Centrifugal pressure exerted by the liquid 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 1.34 0.5 4.34 1 1.34 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of sherical particles is proportional to (where, Dp = diameter of particle). 1/Dp Dp D²p 1/D²p 1/Dp Dp D²p 1/D²p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For classification of potable (drinking) water, we use a __________ filter. Gravity sand Vacuum leaf Plate and frame Rotary vacuum Gravity sand Vacuum leaf Plate and frame Rotary vacuum ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity? Cube Raschig rings Sphere Cylinder (L/D = 1) Cube Raschig rings Sphere Cylinder (L/D = 1) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ conveyors are also called scrapers. Helical flight Apron Both B & C Screw Helical flight Apron Both B & C Screw ANSWER DOWNLOAD EXAMIANS APP
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