Process Equipment and Plant Design Back-trapping in a distillation column results due to Low gas velocity High gas velocity Low reflux ratio Excessive liquid gradient over the tray Low gas velocity High gas velocity Low reflux ratio Excessive liquid gradient over the tray ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to 5 mm 10 mm 8 mm 6 mm 5 mm 10 mm 8 mm 6 mm ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is pd/4t pd/2t pd/t pd/3t pd/4t pd/2t pd/t pd/3t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter. 1/10th 1/50th 1/20th 1/30th 1/10th 1/50th 1/20th 1/30th ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The LMTD correction factor (FT) is defined as the Differenced of true temperature difference and the LMTD Ratio of true temperature difference to the LMTD Ratio of LMTD to the true temperature difference Geometric mean of the true temperature difference and the LMTD Differenced of true temperature difference and the LMTD Ratio of true temperature difference to the LMTD Ratio of LMTD to the true temperature difference Geometric mean of the true temperature difference and the LMTD ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around 3.5 2.5 1.5 0.5 3.5 2.5 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
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