Mechanical Operations For a non-spherical particle, the sphericity 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 Has the dimension of length Is always less than 1 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 Has the dimension of length Is always less than 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) Independent of ΔP ∝ 1/ ΔP ∝ ΔP ∝ √ΔP Independent of ΔP ∝ 1/ ΔP ∝ ΔP ∝ √ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in the capacity of screens, the screen effectiveness Decreases Increases Remains unchanged Decreases exponentially Decreases Increases Remains unchanged Decreases exponentially ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a coarse crusher? Tube mill Smooth roll crusher Gyratory crusher Toothed roll crusher Tube mill Smooth roll crusher Gyratory crusher Toothed roll crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reduction ratio of crushers is the Ratio of feed opening to discharge opening Ratio of discharge opening to feed opening Determining factor for minimum dia of the feed and the product None of these Ratio of feed opening to discharge opening Ratio of discharge opening to feed opening Determining factor for minimum dia of the feed and the product None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Energy requirement (per unit mass of material crushed/ground) is highest for Rod mill Ball mill Fluid energy mill Jaw crusher Rod mill Ball mill Fluid energy mill Jaw crusher ANSWER DOWNLOAD EXAMIANS APP
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