The difference in elevation between two ground points was measured by each of three field parties using different kinds of leveling instruments. The results are as follows: 1st Party, DE = 18.45 m +0.04 m; 2nd Party, DE = 18.40 m + 0.05 m; and 3rd Party, DE = 18.48 m ± 0.03 m. Determine the most probable difference in elevation between the two ground points.

Q: A pre-engineering baseline was run down a very steep hill (see Rather than measure horizontally…

A: Vertical angle = -21o26' Height of range pole from the ground, h = 4.88 ft Slope distance between…

Q: 12. Complete the benchmark-leveling field notes shown in Figure B by computing and recording the HI…

A: Objective: To completer the given leveling notes and perform the arithmetic checks.   Given: Sta.…

Q: 2. A reciprocal leveling is observed across a wide river and the reciprocal level readings were…

A:

Q: Reciprocal levelling is done to test a dumpy level, along a chain line, at a common interval of 15m,…

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Q: the velocity of the bedrock _________meter/second. 4) Critical distance from the source point ___

A:

Methods of Surveying

Surveying is the practice to determine the relative three-dimensional positions of various points on the earth’s surface. This is done by computing the vertical and horizontal distances, angles between the points, collecting the observations, and plotting them on a map of any appropriate scale. Accuracy can be achieved by using the latest instruments like a theodolite, tachometer, etc. Leveling is a subdivision of surveying where the objective is to locate the elevation of objects considering a datum level.