Mechanical Operations For a non-spherical particle, the sphericity Has the dimension of length Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle 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 always less than 1 Has the dimension of length Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle 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 always less than 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Solid particles separation based on the difference in their flow velocities through fluids is termed as the Sedimentation Clarification Elutriation Classification Sedimentation Clarification Elutriation Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a Sparkler filter Disc bowl centrifuge Sharpies supercentrifuge Batch basket centrifuge Sparkler filter Disc bowl centrifuge Sharpies supercentrifuge Batch basket centrifuge ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Type of crushing machine Neither A nor B Both A & B Feed material Type of crushing machine Neither A nor B Both A & B Feed material ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Energy requirement (per unit mass of material crushed/ground) is highest for Fluid energy mill Rod mill Jaw crusher Ball mill Fluid energy mill Rod mill Jaw crusher Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Consumes more power Both A and C Consumes less power Results in increased capacity Consumes more power Both A and C Consumes less power Results in increased capacity ANSWER DOWNLOAD EXAMIANS APP
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