Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) ∝ ΔP Independent of ΔP ∝ √ΔP ∝ 1/ ΔP ∝ ΔP Independent of ΔP ∝ √ΔP ∝ 1/ ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For efficient grinding, ball mills must be operated At a speed less than the critical speed At a speed more than the critical speed With minimum possible small balls At a speed equal to the critical speed At a speed less than the critical speed At a speed more than the critical speed With minimum possible small balls At a speed equal to the critical speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A. __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end. Compartment Rod Pebble Tube Compartment Rod Pebble Tube ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For classification of potable (drinking) water, we use a __________ filter. Rotary vacuum Plate and frame Gravity sand Vacuum leaf Rotary vacuum Plate and frame Gravity sand Vacuum leaf ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The work index in Bond's law for crushing of solids has the following dimensions No units (dimensionless) KWh.m1/2/ton KWh/ton KW/ton No units (dimensionless) KWh.m1/2/ton KWh/ton KW/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultrafine grinders operate principally by Slow compression Impact Attrition Cutting action Slow compression Impact Attrition Cutting action ANSWER DOWNLOAD EXAMIANS APP
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