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 Cylinder (L/D = 1) Raschig rings Cube Sphere Cylinder (L/D = 1) Raschig rings Cube ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gizzlies are used for separating __________ solids. Any size None of these Fine Coarse Any size None of these Fine Coarse ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultra centrifuges are used for the separation of __________ solid particles. Coarse Fine Dissolved Colloidal Coarse Fine Dissolved Colloidal ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Weber number is significant and is concerned with the Suspension of solid in liquid Liquid-liquid mixing Solid-liquid mixing Dispersion of liquid in liquid Suspension of solid in liquid Liquid-liquid mixing Solid-liquid mixing Dispersion of liquid in liquid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. Wettability Shape Specific gravities None of these Wettability Shape Specific gravities None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of Electromagnets Cams or eccentric shafts Either A, B or C Unblanced fly wheels Electromagnets Cams or eccentric shafts Either A, B or C Unblanced fly wheels ANSWER DOWNLOAD EXAMIANS APP
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