Mechanical Operations During agitation of liquids, the Froude number is independent for the curves between power number and Reynolds number in baffled system Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller All of these Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number Froude number is independent for the curves between power number and Reynolds number in baffled system Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller All of these Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a ball mill, Fine feed requires a larger ball Operating speed should be more than the critical speed None of these Coarse feed requires a larger ball Fine feed requires a larger ball Operating speed should be more than the critical speed None of these Coarse feed requires a larger ball ANSWER DOWNLOAD EXAMIANS APP
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? Cylinder (L/D = 1) Raschig rings Sphere Cube Cylinder (L/D = 1) Raschig rings Sphere Cube ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which is a secondary crusher for a hard & tough stone? Toothed roll crusher Impact crusher Jaw crusher Cone crusher Toothed roll crusher Impact crusher Jaw crusher Cone crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gizzlies are used for separating __________ solids. Coarse None of these Fine Any size Coarse None of these Fine Any size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The operating speed of a ball mill should be __________ the critical speed. Slightly more than At least equal to Much more than Less than Slightly more than At least equal to Much more than Less than ANSWER DOWNLOAD EXAMIANS APP
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