(Solved): 1. Illustrate the basic theory of differential leveling. 2. List the formulas to calculate the \( \ ...

1. Illustrate the basic theory of differential leveling. 2. List the formulas to calculate the \( \mathrm{HI} \), and to calculate an elevation. 3. Think about and identify when a foresight would be positive. 4. Define the following leveling terms. Elevation, Datum, Benchmark, Backiph Height of Instrument, Foresight, Turning Point. 5. Describe why a closed loop is necessary in leveling. 6. Describe the step-by-step differential leveling procedure. 7. State why the distance from the instrument to the backsight, and the instrument to the foresight, must be the same (balanced). 8. For leveling on a small construction site such as a home, which type of feid would be a good choice to establish the footing elevations? 9. For establishing elevations on a large site with lots of equipment and the reet to perform the operations quickly, which level would be best? 10. If running benchmark levels on a site where the elevations must be precisc, which level(s) could be used and why? 11. Describe why selection of the instrument setup location is critical to efficient leveling. 12. How is parallax climinated in a leveling instrument? 13. State how a rod person could always insure that the rod is fully extended 14. Describe the ideal turning point. 15. Describe how profile leveling is different and similar to differential levelinf 16. Describe how profile leveling is different and similar to cross-section levelits or grid leveling. 17. Identify any standard practice of differential leveling that is not followal when performing profile, cross-section, or grid leveling. 18. On what type of project might threc-wire leveling be used? 19. Look out a window and describe five objects that would be good beachaarts