In a closed-loop system, the plastic water pipes that are buried in the Earth are called ____.
A. ground loops
B. thermal loops
C. water loops
D. both a and c
Answer: D
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Consider the energy content of the different fossil fuels and their EROI. Discuss why it will be difficult to shift the global energy system away from these resources.
What will be an ideal response?
In the GMAW process, the electrode holder must be lowered steadily as the weld progresses to feed the electrode and maintain the correct arc length.
Answer the following statement true (T) or false (F)
Using a waste factor of 5 percent, determine the number of cubic yards of concrete needed to pour two of the piers in Figure 11.40.
What will be an ideal response?
Performing quantity takeoffs for construction projects that include ____ involves determining the number and type of items such as steel columns, beams, lintels, mullions, base plates, anchor bolts, beam seats, and beam connecting plates.
A. poured-in-place walls and columns B. laminated beams and girders C. structural steel D. conventional materials