Process Equipment and Plant Design In packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing. 50-75 25-50 200-250 750-1000 50-75 25-50 200-250 750-1000 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall tray efficiency of a distillation column is the ratio of the number of Ideal trays required to the number of real trays required Real trays required to the number of ideal trays required Overall gas transfer units to the number of ideal trays required None of these Ideal trays required to the number of real trays required Real trays required to the number of ideal trays required Overall gas transfer units to the number of ideal trays required None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ of water makes it a widely used coolant in heat exchangers. Low viscosity Low dirt factor High specific heat Low corrosiveness Low viscosity Low dirt factor High specific heat Low corrosiveness ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ratio of tube length to shell diameter for a shell and tube heat exchanger is 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger < 4 : 1 for gas-gas exchangers Both B & C 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger < 4 : 1 for gas-gas exchangers Both B & C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as Δp = 1/G0.6 Δp = G Δp = G2 Δp = G0.5 Δp = 1/G0.6 Δp = G Δp = G2 Δp = G0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of 1.5" heat exchanger tubes, the inside flow area __________ with decrease in BWG. None of these Remains same Increases Decreases None of these Remains same Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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