Rigid inserts are used _____.
a. only on cold applications
b. to prevent insulation from being compressed
c. to provide structural support for the pipe
d. to keep pipe away from the ceiling
b. to prevent insulation from being compressed
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There are an estimated 250 million _____ in the United States
a. cats b. rats c. dogs d. feral hogs
Agricultural animals like horses, cattle, goats, sheep, pigs, and dogs belong to which class?
a. Amphibia c. Reptilia b. Mammalia d. Aves
Wood is ____.
A. completely different than plywood B. easy to work with C. not available in many patterns D. not durable
In structural drafting, the CAD technician makes extensive use of lines to show the outline of the object being drawn. Which line type does this describe?
A. Illustration lines B. Physical lines C. Entity lines D. Object lines