Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 3.34 Wi 0.5 Wi Wi 1.34 Wi 3.34 Wi 0.5 Wi Wi 1.34 Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During size reduction by a jaw crusher, the energy consumed decreases with the Decreasing size of product at constant size of feed Increasing size of feed at constant reduction ratio None of these Decreasing machine capacity Decreasing size of product at constant size of feed Increasing size of feed at constant reduction ratio None of these Decreasing machine capacity 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 porosity Decrease the compressibility co-efficient Increase the compressibility co-efficient Increase the porosity Decrease the porosity Decrease the compressibility co-efficient ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) M/ρ . Vp M . ρ/Vp Vp/m . ρ M . Vp/ρ M/ρ . Vp M . ρ/Vp Vp/m . ρ M . Vp/ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Out of the following size reduction equipments, the maximum feed size can be accepted by the Jet pulveriser Tube mill Jaw crusher Ball mill Jet pulveriser Tube mill Jaw crusher Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 200 mesh seive size corresponds to __________ microns. 74 200 154 24 74 200 154 24 ANSWER DOWNLOAD EXAMIANS APP
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