ACR copper tubing is:
A) Copper tubing with added metallurgical alloys that resist corrosion from the refrigerant.
B) Type L, dehydrated copper tubing.
C) Type M, dehydrated copper tubing.
D) Any type of copper tubing so long as it has been dehydrated.
B
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Common flue and chimney sizes are based on the ____.
A. diagonal size of the fireplace opening B. volume of the fireplace opening C. area of the fireplace opening D. height of the fireplace opening
The tool shown in the above figure is used to _____.
a. measure the inside diameter of tubing
b. cut copper tubing
c. make threads in tubing
d. measure thread pitch
The temperature in any structure, regardless of its age, location, or design, can be maintained at comfortable levels with a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not an example of evidence?
a. testimonials and statements b. cited documents c. personal opinions d. literature and statistics