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. 50-75 200-250 25-50 750-1000 50-75 200-250 25-50 750-1000 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Optimum reflux ratio in a continuous distillation column is determined by the Flooding limit of the column None of these Maximum permissible vapour velocity Total cost consideration (fixed cost of the column plus the cooling water & steam cost) Flooding limit of the column None of these Maximum permissible vapour velocity Total cost consideration (fixed cost of the column plus the cooling water & steam cost) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds. 5 17.5 12.5 2.5 5 17.5 12.5 2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method? Molar latent heat of the two components are equal Reflux is not a saturated liquid Sensible heat changes for vapour & liquid are negligibly small Heat of mixing of normal liquid is assumed to be zero Molar latent heat of the two components are equal Reflux is not a saturated liquid Sensible heat changes for vapour & liquid are negligibly small Heat of mixing of normal liquid is assumed to be zero ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap. 76 95 38 19 76 95 38 19 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is Cither A or B; depends upon the I.D. of the pipe Less Same More Cither A or B; depends upon the I.D. of the pipe Less Same More ANSWER DOWNLOAD EXAMIANS APP
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