Mechanical Operations For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. 500 5000 5 50 500 5000 5 50 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pine oil and cresylic acid are used as __________ in the froth floatation process. Depressor Conditioner Frother Collector Depressor Conditioner Frother Collector ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of 'grinding aids' is done in __________ grinding. Dry Intermediate Ultrafine Wet Dry Intermediate Ultrafine Wet ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) 3.6 W.Dr.ρ 3.6 V.W. ρ 3.6 V.W.Dr.ρ 3.6 V.W.Dr/ρ 3.6 W.Dr.ρ 3.6 V.W. ρ 3.6 V.W.Dr.ρ 3.6 V.W.Dr/ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In closed circuit grinding as compared to open circuit grinding, the Product has lesser size uniformity Specific surface of product is more Production rate at a given limiting size is lower Operation is economical Product has lesser size uniformity Specific surface of product is more Production rate at a given limiting size is lower Operation is economical ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screw conveyors are 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 Run at very high rpm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS