Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as N ∝ 1/√D N ∝ 1/D N ∝ √D N ∝ D N ∝ 1/√D N ∝ 1/D N ∝ √D N ∝ D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle). V/6D.S 6.V/D.S S/V V/D.S V/6D.S 6.V/D.S S/V V/D.S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration. Constant pressure Constant rate Varying pressure Varying rate Constant pressure Constant rate Varying pressure Varying rate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration of water in a paper mill is done by a/an __________ filter. Vacuum leaf Sparkler Open sand Plate and frame Vacuum leaf Sparkler Open sand Plate and frame ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through 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 10 mm screen and retained on 5 mm screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is proportional to (where, S = screen aperture) S² √S S 1/S S² √S S 1/S ANSWER DOWNLOAD EXAMIANS APP
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