Process Equipment and Plant Design Overall tray efficiency of a distillation column is the ratio of the number of Overall gas transfer units to the number of ideal trays required Real trays required to the number of ideal trays required Ideal trays required to the number of real trays required None of these Overall gas transfer units to the number of ideal trays required Real trays required to the number of ideal trays required Ideal trays required to the number of real trays required None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to 25 cms 40% of the I.D. of the shell I.D. of the shell 5 cms 25 cms 40% of the I.D. of the shell I.D. of the shell 5 cms 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 static submergence Lower skirt clearance Liquid gradient on the tray Small downcomer liquid seal Lower static submergence Lower skirt clearance Liquid gradient on the tray Small downcomer liquid seal ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of (1.2)5/3 (1.2)3/5 (1.2)3/2 (1.2)2/3 (1.2)5/3 (1.2)3/5 (1.2)3/2 (1.2)2/3 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, the overall heat transfer co-efficient is proportional to the tube side (volumetric flow rate)0.8. This is valid, only when the ratio of the tube side film resistance to the total resistance is almost equal to 1 ∞ 20.8 2 1 ∞ 20.8 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Oxygen carrying pipelines in chemical industries are coloured with __________ colour. Black Yellow Blue Red Black Yellow Blue Red ANSWER DOWNLOAD EXAMIANS APP
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