Drainage, Waste & VentQuestion 110 of 360
Developed length of a pipe run is measured as:
a.The straight-line distance between endpoints
b.The total length along the centerline of the pipe and fittings
c.Only the vertical portions
d.Only the horizontal portions
Explanation
Developed length is measured along the centerline of the pipe and fittings, following the actual path the water travels. A straight-line distance ignores bends and offsets, and counting only vertical or only horizontal portions understates the true run used for slope, vent, and trap-arm limits.
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