Ag mechanics unit 13 Word Scramble
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| Term | Definition |
| a rod reading taken on a point of known elevation | Back Sight (BS) |
| a permanent point of known or assumed elevation from which a survey started | Benchmark (BM) |
| a unit of measurement which equals 66 feet | Chain |
| a line connecting points on the land surface which have the same elevation | Contour line |
| the process of determining the releative elevations of various points; determining elevation differences between points | Differential leveling |
| a rod reading taking place on a point of unknown elevation | Foresight |
| a satellite-based navigation system | Global Positioning System (GPS) |
| the elevation of the level line of sight of the crosshairs in the instrument with respect to the benchmark | Height of instrument |
| a temporary point for a transit while doing differential leveling | Turning point |
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rhorn
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