Which of the following refrigerants is a CFC-type refrigerant?
A. R-22
B. R-123
C. R-134a
D. R-12
Answer: D
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The word xeriscape comes from the Latin word xero for "dry" and scapes for "dryscape."
Indicate whether the statement is true or false
Gravity causes gases to exert force:
A) Downward and to the sides. B) In all directions. C) Downward. D) Gases do not exert force.
What kind of symbol is shown in Figure 3?
a. Basic surface texture symbol
b. Material removal prohibited
c. Material removal by machining is required
d. Material removal by any method desired
e. None of the above
In terms of expense and quality, and starting from the lowest to the highest, cabinets are graded as _____.
a. semicustom, custom, and stock b. stock, semicustom, and custom c. stock, custom, and semicustom d. custom, semicustom, and stock