Mechanical Operations For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as Np → constant Np ∝ √NRe Np ∝ NRe Np ∝ 1/NRe Np → constant Np ∝ √NRe Np ∝ NRe Np ∝ 1/NRe ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vertical transportation of materials can be done by a/an Pneumatic conveyor Both B & C Bucket elevator Apron conveyor Pneumatic conveyor Both B & C Bucket elevator Apron conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the 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 Linear speed of the basket is halved ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through 10 mm screen and retained on 5 mm screen 5 mm screen and retained on 10 mm screen Neither 5 mm nor 10 mm screen Both 5 mm and 10 mm screens 10 mm screen and retained on 5 mm screen 5 mm screen and retained on 10 mm screen Neither 5 mm nor 10 mm screen Both 5 mm and 10 mm screens ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The process by which fine solids is removed from liquids is termed as Flocculation Sedimentation Classification Decantation Flocculation Sedimentation Classification Decantation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a Sparkler filter Disc bowl centrifuge Batch basket centrifuge Sharpies supercentrifuge Sparkler filter Disc bowl centrifuge Batch basket centrifuge Sharpies supercentrifuge ANSWER DOWNLOAD EXAMIANS APP
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