QUESTIONS

Q1. Q2. Q3. Q4. Q5. Q6. Q7. Figure 10-36.—Profile and cross-section levels. QUESTIONS Into what three phases are route surveys usually broken? For what reasons should overhead electrical pole lines be located on the side of a street that is most free from other lines and trees? As it relates to the surface drainage of water, what does the term “runoff” mean? Refer to figure 10-3. What is the invert of the pipe at station 1 + 50? Refer to the field notes shown in figure 10-36. Assuming the road is 30 feet wide, what is the (a) area of the cross section at station 6 +00 and (b) volume between stations 6 + 00 and 6 + 50? As related to muss diagrams, what is the limit of economic haul? In which of the following ways does an as-built survey performed for the purpose of verifying the location of points as they are constructed in the field differ from an as-built survey that is per- formed for the purpose of monitoring construc- tion progress? a. The amount of time allowed to perform the survey b. The equipment used to perform the survey c. The degree of accuracy required Q8. When staking out a sewer line, at what interval of distance should you usually set the center-line stakes or the offset hubs? Q9. Refer to figure 10-29. What is the sine of the anglee that you should turn from station 10 + 38.83 to locate pile No. 8? Q10. In land surveying, when a metes-and-bounds description is being prepared, what may be added to the bearings of the boundary lines to help in retracing the lines? 10-37