Process Equipment and Plant Design Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor. 43961 30-35 15-20 35-40 43961 30-35 15-20 35-40 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter. Twice 2 ft irrespective of (for column > 3 ft diameter) 0.6-0.8 times Equal to Twice 2 ft irrespective of (for column > 3 ft diameter) 0.6-0.8 times Equal to ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the Both A & B Practical limit reached, due to low heat transfer rate because of inadequate temperature difference Economic limit reached, when the plant cost exceeds the saving of steam Neither A nor B Both A & B Practical limit reached, due to low heat transfer rate because of inadequate temperature difference Economic limit reached, when the plant cost exceeds the saving of steam Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall tray efficiency of a distillation column is the ratio of the number of None of these Ideal trays required to the number of real trays required Overall gas transfer units to the number of ideal trays required Real trays required to the number of ideal trays required None of these Ideal trays required to the number of real trays required Overall gas transfer units to the number of ideal trays required Real trays required to the number of ideal trays required ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tube side heat transfer co-efficient for turbulent flow of liquid through tubes is proportional to G0.2 G0.8 G1.5 G0.5 G0.2 G0.8 G1.5 G0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger Facilitates comparatively easier external cleaning because of large clearance Permits the use of more tubes in a given shell diameter Permits the use of less tubes in a given shell diameter Both B and C Facilitates comparatively easier external cleaning because of large clearance Permits the use of more tubes in a given shell diameter Permits the use of less tubes in a given shell diameter Both B and C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS