Process Equipment and Plant Design Back-trapping in a distillation column results due to Low reflux ratio High gas velocity Low gas velocity Excessive liquid gradient over the tray Low reflux ratio High gas velocity Low gas velocity Excessive liquid gradient over the tray ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure. Ellipsoidal Torispherical Hemispherical Flat plate Ellipsoidal Torispherical Hemispherical Flat plate ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a cylinderical vessel subjected to internal pressure, the longitudinal stress σL and the circumferential stress, σh are related by No relation exists σh = 2 σL σh = σL/2 σh = σL No relation exists σh = 2 σL σh = σL/2 σh = σL ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum baffle height should be Twice the tank diameter Twice the impeller diameter 3/4 of the tank height Equal to the impeller diameter Twice the tank diameter Twice the impeller diameter 3/4 of the tank height Equal to the impeller diameter ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Larger depth of liquid on the trays of a distillation column Neither A nor B Results in higher pressure drop per tray Leads to high tray efficiency Both A & B Neither A nor B Results in higher pressure drop per tray Leads to high tray efficiency Both A & B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The approximate liquid depth in an agitation tank is equal to (where, d = tank diameter) D 0.5 d 2 d 0.75 d D 0.5 d 2 d 0.75 d ANSWER DOWNLOAD EXAMIANS APP
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