Mechanical Operations Grinding efficiency of a ball mill is of the order of __________ percent. 75-80 40-50 90-95 43835 75-80 40-50 90-95 43835 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following size reduction equipments employs mainly attrition for ultrafine grinding? All of these Micronizer Jet mills Fluid energy mill All of these Micronizer Jet mills Fluid energy mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy consumed by a ball mill depends on All of these Its ball load The density of the material being ground Its speed All of these Its ball load The density of the material being ground Its speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Two particles are called to be equal settling, if they are having the same. None of these Size Terminal velocities in the same fluid & in the same field of force Specific gravity None of these Size Terminal velocities in the same fluid & in the same field of force Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 0.02 μm/s 22.1 μm/s 0.90 μm/s 1 μm/s 0.02 μm/s 22.1 μm/s 0.90 μm/s 1 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Addition of filter aid to the slurry before filtration is done to ...... of the cake. Increase the compressibility co-efficient Increase the porosity Decrease the compressibility co-efficient Decrease the porosity Increase the compressibility co-efficient Increase the porosity Decrease the compressibility co-efficient Decrease the porosity ANSWER DOWNLOAD EXAMIANS APP
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