Mechanical Operations Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration. Varying pressure Constant rate Varying rate Constant pressure Varying pressure Constant rate Varying rate Constant pressure ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a non-spherical particle, the sphericity Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle Is always less than 1 Has the dimension of length Is defined as the ratio of surface area of a sphere having the same volume as the particle to the actual surface area of the particle Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle Is always less than 1 Has the dimension of length Is defined as the ratio of surface area of a sphere having the same volume as the particle to the actual surface area of the particle ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Run of mine (ROM) coal is crushed by a __________ for use in domestic ovens. Ball mill Tube mill Hammer crusher Jaw crusher Ball mill Tube mill Hammer crusher Jaw crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid? Vacuum filter Plate and frame filter press Sand bed filter Batch basket centrifuge Vacuum filter Plate and frame filter press Sand bed filter Batch basket centrifuge ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) ∝ 1/ ΔP ∝ √ΔP ∝ ΔP Independent of ΔP ∝ 1/ ΔP ∝ √ΔP ∝ ΔP Independent of ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of grinding in a ball mill All of these Grinding cost and power requirement increases with increasing fineness of the products Wet grinding achieves a finer product size than dry grinding Its capacity decreases with increasing fineness of the products All of these Grinding cost and power requirement increases with increasing fineness of the products Wet grinding achieves a finer product size than dry grinding Its capacity decreases with increasing fineness of the products ANSWER DOWNLOAD EXAMIANS APP
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