Mechanical Operations Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) M . ρ/Vp M/ρ . Vp Vp/m . ρ M . Vp/ρ M . ρ/Vp M/ρ . Vp Vp/m . ρ M . Vp/ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For efficient grinding, ball mills must be operated At a speed equal to the critical speed At a speed more than the critical speed At a speed less than the critical speed With minimum possible small balls At a speed equal to the critical speed At a speed more than the critical speed At a speed less than the critical speed With minimum possible small balls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The mechanism of size reduction by a hammer mill is by impact and attrition between the Feed particles Both A & B Grinding element & the housing Neither A nor B Feed particles Both A & B Grinding element & the housing Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grinding characteristic of a material is given by its HGI Angle of repose Abrasion index Shatter index HGI Angle of repose Abrasion index Shatter index ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The controlling resistance in a rotary drum vacuum filter is the __________ resistance. None of these Piping Filter medium Cake None of these Piping Filter medium Cake ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following may prove unsuitable for filtering volatile liquids? Vacuum filter Centrifugal filter Pressure filter Gravity filter Vacuum filter Centrifugal filter Pressure filter Gravity filter ANSWER DOWNLOAD EXAMIANS APP
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