Codes & Safety第 110 / 120 题
On a set of plumbing drawings, which view shows the vertical arrangement of the DWV piping, the floor-to-floor relationships and the order of the connections, drawn at an angle and generally not to scale?
a.The riser or isometric diagram
b.The floor plan view
c.The civil or site utility plan
d.The fixture schedule
解析
A riser or isometric diagram is a single-line pictorial drawing of the system in three dimensions; it shows what connects to what and at what level but is not drawn to scale, so lengths cannot be measured off it. The floor plan is a scaled overhead view used to locate piping horizontally and to read symbols such as CW, HW, waste and vent. The site plan shows the sewer and water service outside the building along with invert elevations and benchmarks. The fixture schedule is a table of fixture types, models and connection sizes, not a view of the piping.
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