Core TradesQuestion 164 of 700
In construction surveying, a 'benchmark' is BEST described as:
a.A fixed reference point of known elevation used to establish grades and levels
b.The property corner between two lots
c.The highest point along a graded slope
d.The centerline of an access road
Explanation
A benchmark is a permanent, fixed point whose exact elevation is known; surveyors reference it to set finished grades and building elevations. A property corner is a horizontal boundary marker, not an elevation reference, and neither a slope high point nor a road centerline serves as the datum for elevations.
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