The most important concern of the plumbing profession is
A. safety
B. installing DWV systems
C. installing potable water systems
D. preventing cross connections
Answer: A
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For an axially loaded rod, prove that for the guidelines in Figure 2–24.
What will be an ideal response?
The molarity of a solute in solution is defined to be the number of moles of solute per liter of solution 
. If X is the molarity of a solution of sodium chloride (NaCl), and Y is the molarity of a solution of sodium carbonate
, the molarity of sodium ion (Na+) in a solution made of equal parts NaCl and is given by M = 0.5X + Y. Assume X and Y are independent and normally distributed, and that X has mean 0.450 and standard deviation 0.050, and Y has mean 0.250 and standard deviation 0.025.
a. What is the distribution of M? b. Find P(M > 0.5).
Using the TR-55 method, determine the depth of runoff for a 24-hour, 100-year precipitation event of 9 inches if the soil can be classified as group B and the watershed is contoured pasture with good hydrologic condition and an antecedent soil condition III.
What will be an ideal response?
Elk have an unpredictable disposition.
Answer the following statement true (T) or false (F)