Natural draft towers and spray ponds are designed to produce a difference in water and air temperatures of ____°F.
A. 3
B. 5
C. 7
D. 10
Answer: D
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Which of the following provided the structure that held the Old Regime societies together?
a. rent rolls b. local laws c. royal edicts d. legal documents
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Which type of hammer is plastic coated, has a metal casing inside, and is filled with small lead balls?
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With the advent of mechanical milling equipment in the early ____, small-dimensional lumber became widely available, and stick-frame methods began to emerge.
A. 18th century B. 19th century C. 20th century D. 1940s
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