Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Cross-partition rings Raschig rings Lessig rings All of these Cross-partition rings Raschig rings Lessig rings All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends. Less than More than Either B or C; depends on maximum permissible internal pressure Equal to Less than More than Either B or C; depends on maximum permissible internal pressure Equal to ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the Equal sized reactors are the best Smaller reactor should come first None of these Larger reactor should come first Equal sized reactors are the best Smaller reactor should come first None of these Larger reactor should come first ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Saddle supports are used for supporting __________ vessels. Horizontal cylinderical Thick walled vertical Thick spherical Tall vertical Horizontal cylinderical Thick walled vertical Thick spherical Tall vertical ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop per tray in the atmospheric distillation column is about __________ psi. 43833 0.5 - 1.0 0.07 - 0.12 0.01 - 0.5 43833 0.5 - 1.0 0.07 - 0.12 0.01 - 0.5 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 2 20.8 1 ∞ 2 20.8 1 ∞ ANSWER DOWNLOAD EXAMIANS APP
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