_____ mortar boxes are considerably lighter in weight than traditional mortar boxes.
A. Polyethylene plastic
B. Wooden
C. Carbon steel
D. Stainless steel
Answer: A
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The display of line precedence on prints is based on the following rule or rules:
a. Object lines take precedence over hidden lines and centerlines. b. Hidden lines take precedence over centerlines. c. Cutting plane lines take precedence over centerlines. d. All of the above are correct.
Steel-wire bar supports that offer no protection against rusting are designated as Class _____.
a. A b. B c. C d. D
Which of the following conditions would likely increase the system high-side pressure?
A) An underfeeding metering device B) Increase in the outdoor ambient temperature for air-cooled units C) A restricted liquid-line filter drier D) A dirty indoor air filter
The two basic types of letters on working drwings are ______ and _________ letters.
Fill in the blank(s) with the appropriate word(s).