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The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.
In a certain city there are five towers. Tower III is taller than tower II. Height of Tower V is the average of the height of towers I and IV. Height of Tower II is the average of the height of towers I and III. Height of Tower I is the average of the height of towers II and V. Which tower is the shortest?
Consider the following statements for cooling towers: 1. Cooling tower is an artificial device used to cool the hot cooling water coming out of condenser more effectively. 2. The amount of water usually lost with induced draft cooling tower ranges from 5% to 6% by evaporation. 3. The amount of water usually lost with induced draft cooling tower ranges from 7% to 8% by drift losses. 4. The rate of evaporation of water and its cooling effect on the remaining water depends upon the relative humidity of air passing through the tower. Which of the above statements are correct?
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure
In the following question, two columns are given containing three phrases each. In the first column phrases are A, B, and C and in the second column, the phrases are D, E, and F. A phrase from the first column may or may not connect with phrase from the second column to make grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a grammatically and contextually correct sentence. If none of the options forms a correct sentence after combination, select ‘None of these’ as your answer. Column 1 Column 2 A. ‘OxyContin’ maker Purdue Pharma LP won court approval of a $4.5 billion bankruptcy settlement that shields its owners from D. gross electricity production of about 24% is far higher than those of all other renewable energy sources.  B. The latest GDP estimates expectedly show that the national output rebounded in the first quarter of the current fiscal from the E. record contraction in April-June 2020 when the pandemic’s onset and the lockdown gutted the economy. C. Wind energy is of outstanding importance to the energy transition in Germany, and its share in F. lawsuits accusing them of contributing to the nation’s opioid epidemic in exchange for providing funding to combat the crisis.
The pressure drop in tower should be between _________ N/m2 per meter of tower height to prevent flooding.
Consider the following Column A and Column B in which the names of microorganisms are given in Column A and the groups to which they belong are given in Column B: Column A Column B (a) Aspergillus (i) Algae (b) Lactobacillus (ii) Bacteria (c) Paramecium (iii) Fungi (d) Spirogyra (iv) Protozoa   (v) Virus The correct match of the items of Column A with that of Column B is
At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.
In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.