Mechanical Operations Crushing efficiency of a machine ranges between __________ percent. 5 to 10 20 to 25 0.1 to 2 50 to 70 5 to 10 20 to 25 0.1 to 2 50 to 70 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the Square root of the velocity Square of the viscosity Washing time only Filtration time only Square root of the velocity Square of the viscosity Washing time only Filtration time only ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pick out the material having minimum Rittinger's number. Calcite Quartz Pyrite Galena Calcite Quartz Pyrite Galena ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the Linear speed of the basket is halved Capacity of centrifuge is increased Centrifugal force is doubled Linear speed of the basket is doubled Linear speed of the basket is halved Capacity of centrifuge is increased Centrifugal force is doubled Linear speed of the basket is doubled ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Optimum ratio of operating speed to critical speed of a trommel is 1.5-2.5 0.5-2 0.33-0.45 1.33-1.45 1.5-2.5 0.5-2 0.33-0.45 1.33-1.45 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Bucket elevators are not suitable for the vertical lifting of __________ materials. Free flowing Small lumpy (e.g. grains and sand) Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) Free flowing Small lumpy (e.g. grains and sand) Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) ANSWER DOWNLOAD EXAMIANS APP
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