Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Can't be used for separation of fine suspended solids from a liquid Can not be operated under pressure/vacuum Operate at higher speed Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid Can not be operated under pressure/vacuum Operate at higher speed Employ bowl of larger diameter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The opening of a 200 mesh screen (Taylor series) is 0.0047 cm 0.0074 mm 74 mili-microns 0.0074 cm 0.0047 cm 0.0074 mm 74 mili-microns 0.0074 cm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Bucket elevators are not suitable for the vertical lifting of __________ materials. Sticky (e.g. clay paste) Small lumpy (e.g. grains and sand) Free flowing Fine (e.g. - 200 mesh size coal) Sticky (e.g. clay paste) Small lumpy (e.g. grains and sand) Free flowing Fine (e.g. - 200 mesh size coal) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of isotopes is generally done using a/an __________ centrifuge. Disk-bowl Both A & B Ultra Neither A nor B Disk-bowl Both A & B Ultra Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of grinding in a ball mill All of these Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products Wet grinding achieves a finer product size than dry grinding All of these Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products Wet grinding achieves a finer product size than dry grinding ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately ? None of these Bond's law Kick's law Rittinger's law None of these Bond's law Kick's law Rittinger's law ANSWER DOWNLOAD EXAMIANS APP
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