Station 0+00 is at BM which has an elevation of 508.97. During the survey, the backsight (BS) to this monument is recorded as 10.92. The level is then turned to sta 1+48, and the foresight (FS) is recorded as 13.14. Next the level is moved to a new position between STA. 1+48 and sta. 2+76. Now the BS is 8.78 and the FS is 5.25. Once again, the level is moved to a new position to complete the survey. This time, the level is moved to a point between sta. 2+76 and sta. 4+12. At this point the BS is 18.22 and the FS is 7.94 18. what is the elevation for sta. 2+76 a. 506.75 b. 510.28 c. 520.56
d. 528.50 19. what is the HI when the level is positioned between sta. 2+76 and sta. 4+12? a. 506.75 b. 510.28 c. 520.56 d. 528.50 20. which station has the highest elevation a. sta. 0+00 b. sta. 1+48 c. sta. 2+76 d. sta. 4+12