Mechanical Operations Work index is defined as the Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Energy needed to crush one tonne of feed to 200 microns Energy needed to crush one ton of feed to 100 microns Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Energy needed to crush one tonne of feed to 200 microns Energy needed to crush one ton of feed to 100 microns Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screw conveyors are Run at very high rpm All of these Suitable for highly abrasive materials Suitable for sticky materials Run at very high rpm All of these Suitable for highly abrasive materials Suitable for sticky materials ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A fluid energy mill is used for Ultra grinding Cutting Grinding Crushing Ultra grinding Cutting Grinding Crushing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to N² N¹ N³ N° N² N¹ N³ N° ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ). 1/μ² 1/μ √μ 1/√μ 1/μ² 1/μ √μ 1/√μ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A cottrel precipitator makes use of the __________ for dusty air cleaning. None of these Alternating current Electric spark Corrona discharge None of these Alternating current Electric spark Corrona discharge ANSWER DOWNLOAD EXAMIANS APP
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