Mechanical Operations The operating speed of a ball mill should be __________ the critical speed. At least equal to Slightly more than Much more than Less than At least equal to Slightly more than Much more than Less than ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a pressure filter? Sand filter Leaf filter (Moore filter) Rotary drum filter Plate and flame filter Sand filter Leaf filter (Moore filter) Rotary drum filter Plate and flame filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of 'grinding aids' is done in __________ grinding. Wet Dry Intermediate Ultrafine Wet Dry Intermediate Ultrafine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Gyratory crusher Ball mill Toothed roll crusher Tube mill Gyratory crusher Ball mill Toothed roll crusher Tube mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) Independent of ΔP ∝ ΔP ∝ √ΔP ∝ 1/ ΔP Independent of ΔP ∝ ΔP ∝ √ΔP ∝ 1/ ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is 0.62 0.58 0.68 0.5 0.62 0.58 0.68 0.5 ANSWER DOWNLOAD EXAMIANS APP
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