Mechanical Operations Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. 0.014 0.007 0.3 50 0.014 0.007 0.3 50 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Electrical energy consumed by a jaw crusher is not a function of the Machine capacity Average feed size Average product size None of these Machine capacity Average feed size Average product size None of these 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 V.W.Dr.ρ 3.6 V.W. ρ 3.6 V.W.Dr/ρ 3.6 W.Dr.ρ 3.6 V.W.Dr.ρ 3.6 V.W. ρ 3.6 V.W.Dr/ρ 3.6 W.Dr.ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. Middling Concentrate None of these Tailing Middling Concentrate None of these Tailing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The value of 'angle of nip' is generally about 52° 16° 64° 32° 52° 16° 64° 32° ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For the preliminary breaking of hard rock, we use a Gyratory crusher Squirrel-cage disintegrator Tube mill Ball mill Gyratory crusher Squirrel-cage disintegrator Tube mill Ball mill ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS