This video shows you how to calculate out the Rise and Fall Level Book so that you are able to establish the Reduced Level of the point that you have surveyed.
This video shows you how to calculate out the Rise and Fall Level Book so that you are able to establish the Reduced Level of the point that you have surveyed.
Using a prototype Gauge Frame Level to show the difference between a level contour line, a 1% down slope, and a 2% down slope. A normal A-Frame Level does well at surveying a level contour line for a …
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