Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always More than geometric mean value Both B & C Less than arithmetic mean value More than arithmetic mean value More than geometric mean value Both B & C Less than arithmetic mean value More than arithmetic mean value 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 σh = σL/2 σh = 2 σL No relation exists σh = σL σh = σL/2 σh = 2 σL No relation exists σh = σL ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Normal screwed fittings are used for pipes upto a diameter of __________ inches. 3 5 7 1.5 3 5 7 1.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Stage efficiency for packed tower varies with the Type & size of packing Fluid rates and fluid properties Operating pressure and column diameter All of these Type & size of packing Fluid rates and fluid properties Operating pressure and column diameter All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around 0.55-0.85 0.4-0.6 0.1-0.2 0.35-0.75 0.55-0.85 0.4-0.6 0.1-0.2 0.35-0.75 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the Lower skirt clearance Liquid gradient on the tray Lower static submergence Small downcomer liquid seal Lower skirt clearance Liquid gradient on the tray Lower static submergence Small downcomer liquid seal ANSWER DOWNLOAD EXAMIANS APP
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