A1. What effect does increasing the spacing between trays have on
a. Column efficiency?
b. Csb, f and column diameter?
c. Column height?
A2. Several different column areas are used in this chapter. Define and contrast: total cross-sectional area, net area, downcomer area, active area, and hole area.
A3. Relate the head of clear liquid to a pressure drop in psig.
A4. Another type of weir not shown in Figure 10-6 is the adjustable weir. In an adjustable weir the height can be changed by loosening bolts, moving the weir, and retightening the bolts. List as many reasons as you can think of why this type of weir is generally not recommended.
A5. As shown by the Leaning Tower of Pisa, towers that do not have a proper footing ...