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 0.1-0.2 0.55-0.85 0.35-0.75 0.4-0.6 0.1-0.2 0.55-0.85 0.35-0.75 0.4-0.6 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a Clearance of 25-75 mm Neither A nor B Either A or B Cap pitch of 1.3-2 times the cap diameter Clearance of 25-75 mm Neither A nor B Either A or B Cap pitch of 1.3-2 times the cap diameter ANSWER DOWNLOAD EXAMIANS APP
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 More than arithmetic mean value Both B & C Less than arithmetic mean value More than geometric mean value More than arithmetic mean value Both B & C Less than arithmetic mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by 4(0.86p² - πd²)/πd 4(0.86p² - πd²/4)/πd (4p² - πd²/4)/πd (p² - πd²/4)/πd 4(0.86p² - πd²)/πd 4(0.86p² - πd²/4)/πd (4p² - πd²/4)/πd (p² - πd²/4)/πd ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency Decreases May increase or decrease depending upon the plate spacing Remains same Increases Decreases May increase or decrease depending upon the plate spacing Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a distillation column, minimum clearance to be maintained betweeen the overflow weir and the last row of the bubble caps is __________ cms. 7.5 2.5 20 15 7.5 2.5 20 15 ANSWER DOWNLOAD EXAMIANS APP
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