300 STA 0+00 STA 10+00 -00 350 5. Develop a mass diagram for the airfield cut through the site (Figure No. 1). Contour lines are established at 10-foot intervals of elevation. a. Estimate cut or fill volumes for each perpendicular cross section of the runway at 100-foot intervals (black station lines) along the axis of the runway. b. Calculate the cumulative volume curve based on the volumes calculated in part a. c. Determine the elevation of the runway that would minimize off-site borrow or disposal. STA 20+00 STA 30+00 6. Figure No. 1 For each of the following machines, find and copy a picture (it must be a photograph of a real machine) from the internet and label (you, by hand, on the photograph) each major component: hydraulic excavator, hydraulic shovel, dragline, clamshell, wheel trencher, crawler crane, and tower crane. STA 40+00 350- STA 50+00 350