Mechanical Operations Bucket elevators are not suitable for the vertical lifting of __________ materials. Small lumpy (e.g. grains and sand) Free flowing Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) Small lumpy (e.g. grains and sand) Free flowing Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) 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 1 μm/s 0.90 μm/s 22.1 μm/s 0.02 μm/s 1 μm/s 0.90 μm/s 22.1 μm/s 0.02 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream. Clarifier Classifier Thickener Strainer Clarifier Classifier Thickener Strainer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tube mill compared to ball mill Uses smaller balls Produces finer products Is long in comparison with its diameter All of these Uses smaller balls Produces finer products Is long in comparison with its diameter All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Equivalent diameter of a particle is the diameter of the sphere having the same None of these Ratio of volume to surface as the particle Ratio of surface to volume as the actual volume Volume as the particle None of these Ratio of volume to surface as the particle Ratio of surface to volume as the actual volume Volume as the particle ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is All of these Added to the feed slurry Precoated on the filter medium prior to filtration Separated from the cake by dissolving solids or by burning it off All of these Added to the feed slurry Precoated on the filter medium prior to filtration Separated from the cake by dissolving solids or by burning it off ANSWER DOWNLOAD EXAMIANS APP
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