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? Sphere Cube Cylinder (L/D = 1) Raschig rings Sphere Cube Cylinder (L/D = 1) Raschig rings ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gummy & sticky materials like molasses, sugar etc. are best transported/handled by using a __________ conveyor. Ribbon Screw Slat Drag Ribbon Screw Slat Drag ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Optimum ratio of operating speed to critical speed of a trommel is 0.33-0.45 0.5-2 1.33-1.45 1.5-2.5 0.33-0.45 0.5-2 1.33-1.45 1.5-2.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to The change in volume due to crushing The size reduction ratio The new surface created None of these The change in volume due to crushing The size reduction ratio The new surface created None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Neither A nor B Surface active agent Electrolyte Both A & B Neither A nor B Surface active agent Electrolyte Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mill is normally used for grinding of talc. Compartment Tube Pebble Ring-roll Compartment Tube Pebble Ring-roll ANSWER DOWNLOAD EXAMIANS APP
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