In this video, I answer some questions received by e-mail & youtube comments, 1st question is about orientation & Resection 2nd question is about earthwork how to land survey do the earthwork in the hilly area when contours and existing profile and design Profiles and cross-sections are given. I explain 1st how to read these cross-sections of earthwork for quantity and how to make offsets from the centerline of a road and how to do setting out for on-site