PVC drain lines on rooftop units should be insulated
A) to prevent deterioration of the PVC from exposure to UV
B) improve system efficiency
C) to avoid heating the condensate water
D) to reduce the sound created by the high velocity through the drain
A
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A field has an 8° drop on the horizontal in 2,100 feet. Find the vertical distance (x) in Figure 3-2.
You controlled weeds on 30 acres of tobacco by using 8.5 fluid ounces per acre of herbicide A and 2.2 pints per acre of herbicide B.
a. How many pints of herbicide A were used? b. How many gallons of herbicide B were used?
The design process occurs in what stage(s)?
a. site analysis b. design analysis c. program analysis d. both "site analysis" and "design analysis"
In the accompanying figure, the symbol in section identified with the number 3 indicates the ____.
A. width of the hole B. depth of the hole C. diameter of the hole D. diameter of the drill