4.You are required to stake out a series of lathe to guide construction for a section of highway. The design data are as follows: STATION 13+56 13+56 to 14+72 14+72 to 15+00 Elevation=234.476 Grade=-1.8% Grade = -1.4% You are required to stake out points at every even 20m station, plus the three critical points (the start and end stations plus 14+72, where the grade changes). You can stake out Stations 13+56 to 14+60 from one setup with an HI= 234.618. For the remaining stations, you must use a second setup with an HI= 232.753.

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Length and Length related Variables

Length can de defined as the measurement or extent of physical quantities or objects from one terminal to another terminal. Stone age humans used finger length, step length, and so on to measure the size or displacement of an object. Nowadays, depending on how precise the measurement requires to be and the object’s size is measured, we use measuring devices for measurements like rulers and steel tape. Most people have used a ruler or tape measure to measure a particular distance or the size of an object. For more precise measurements of tiny objects, the development of measurement tools such as the Vernier caliper, which permits us to measure dimensions within 1/1000 of an inch. In the last few decades, electronic distance measuring instruments (EDMI) have been implemented that permit us to measure distances from a few feet to many miles with reasonable accuracy.