Mechanical Operations Weber number is significant and is concerned with the Suspension of solid in liquid Liquid-liquid mixing Dispersion of liquid in liquid Solid-liquid mixing Suspension of solid in liquid Liquid-liquid mixing Dispersion of liquid in liquid Solid-liquid mixing 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 Feed material Neither A nor B Both A & B Type of crushing machine Feed material Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The sphericity of a solid particle of cubical shape is π (π/6)1/3 π/3 (π/6)1/2 π (π/6)1/3 π/3 (π/6)1/2 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of grinding in a ball mill All of these Wet grinding achieves a finer product size than dry grinding Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products All of these Wet grinding achieves a finer product size than dry grinding Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle). V/D.S S/V V/6D.S 6.V/D.S V/D.S S/V V/6D.S 6.V/D.S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a ball mill, Operating speed should be more than the critical speed None of these Fine feed requires a larger ball Coarse feed requires a larger ball Operating speed should be more than the critical speed None of these Fine feed requires a larger ball Coarse feed requires a larger ball ANSWER DOWNLOAD EXAMIANS APP
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