Name the horizontal member at the ridge that runs perpendicular to the rafters:
What will be an ideal response?
ridge board
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Which type of sink is used to provide sanitary drinking water without the need for a cup?
a. bar b. culinary c. water cooler d. mop sink
Backflow of wastewater into the potable-water supply can cause _____.
a. corrosion b. pressure losses c. contamination d. turbulence
J. D. has a square lot. Each side of the lot is 36 feet long. He built a circular grain bin that reaches to the edge of the lot. What is the area of the base of the grain bin?
What will be an ideal response?
?Which type of control is most typically used with 3-way mixing valves that have an electronically controlled mixing assembly?
A. ?on/off control B. ?floating control C. ?mixing proportional control D. ?no control is necessary with this type of valve