Mechanical Operations The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is ?2 1.5 None of these 1 ?2 1.5 None of these 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Work index is the gross energy (kWh/tonne of feed) necessary to reduce a very large feed to such a size that 80% of product particles will pass through a 0.1 mm screen. The value of work index determined for wet grinding should be multiplied with __________ to get the same for dry grinding. 0.5 4.34 1 1.34 0.5 4.34 1 1.34 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as D D² 1/d √d D D² 1/d √d ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most common filter aid is Calcium silicate Silica gel Sodium carbonate Diatomaceous earth Calcium silicate Silica gel Sodium carbonate Diatomaceous earth ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Specific surface ratio Surface area per unit mass Sauter diameter Shape factor Specific surface ratio Surface area per unit mass Sauter diameter Shape factor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Bucket elevators are not suitable for the vertical lifting of __________ materials. Small lumpy (e.g. grains and sand) Fine (e.g. - 200 mesh size coal) Free flowing Sticky (e.g. clay paste) Small lumpy (e.g. grains and sand) Fine (e.g. - 200 mesh size coal) Free flowing Sticky (e.g. clay paste) ANSWER DOWNLOAD EXAMIANS APP
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