LEVELING/ELEVATIONS 1. Benchmarks are most often determined by differential leve

Question

LEVELING/ELEVATIONS 1. Benchmarks are most often determined by differential leveling. a. True b. False For Questions 2 - 8: The following are the 5 column headings placed at the top of the left-hand page in level notes a. Station b. B.S . .1 d. F.S e. Elevation 2. Which column is added to the Beginning Benchmark elevation to determine the line of sight elevation? 3. Which column displays the horizontal distances between shots? 4. Which column is used to display the difference between the H.I. and the F.S.? 5, which column is used to display the shot that is subtracted from the H..? 6. Which column has the sign of "+"? 7. Which column has the sign of"- "? 8. Which column displays the line of sight elevation?' 9. Try to keep the distance between turning points as equal as possible a. True b. False 10. It is good practice to keep shots in the range of 400 600 feet when running benchmarks a. True b. False 11. The Philadelphia rod is graduated into what part of a foot? a. 0.1 b. 0.01 c. 0.001 d. a and b above

Explanation / Answer

1.(b) False, they are found using the Theodolites or other more accurate techniques.

2. b) B.S. is added to get elevation fo the sight or HI.

3. a) Stations represent the chainage or the horizontal distance.

4. e) Elevation = HI - FS

5. d) F.S. is subtracted from HI to give the elevation of the station.

6. b) B.S. is added, so +ve.

7. d) F.S. id subtracted, so -ve.

8. c) HI represents the line of sight elevation.

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