Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter < 6:1 > 8:1 < 8 : 1 > 4 :1 < 6:1 > 8:1 < 8 : 1 > 4 :1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the Range is 15°F Neither A nor B Both A & B Approach is 10°F Range is 15°F Neither A nor B Both A & B Approach is 10°F ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time) (4De/t) (De/t)1/2 (4De/πt)1/2 (De.t)1/2 (4De/t) (De/t)1/2 (4De/πt)1/2 (De.t)1/2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture contained by a substance in excess of the equilibrium moisture is called the __________ moisture. Critical Free Unbound Bound Critical Free Unbound Bound ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diameter to height ratio for a rashig ring is 0.5 2 5 1 0.5 2 5 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Schimdt number and Lewis number for pure air at atmospheric conditions are respectively 1 and 0 0 and ≈ 1 >1 and ≈ 1 < 1 and ≈ 1 1 and 0 0 and ≈ 1 >1 and ≈ 1 < 1 and ≈ 1 ANSWER DOWNLOAD EXAMIANS APP
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