A Z-bend in a long run of pipe is installed to avoid _____.
a. running outside of the pipe right-of-way
b. an obstruction
c. damage to the pipe due to thermal expansion
d. a mistake in laying out the pipe run
c. damage to the pipe due to thermal expansion
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In a basic air-conditioning circuit there are two ____ switches in order to protect the compressor from extremes.
A. pressure B. temperature C. flow D. float
Boards used as edge forms for tilt-up panels are commonly _____.
a. 1" × 3" or 1" × 4" lumber b. 2" × 3" or 2" × 4" lumber c. 2" × 6" or 2" × 8" lumber d. 2" × 8" or 1" × 10" lumber
Why are plants so essential to us?
What will be an ideal response?
Exterior slabs of concrete patios and porch floors should be placed a minimum of ____ below the bottom of the floor structure or any wood framing, or the foundation wall should extend above the floor framing to the bottom of the wall structure.
A. two inches B. four inches C. six inches D. eight inches