Restoration of Lost Corners by Proportionate Measurement

Page

Section 1 - Review Exercise

1. In a situation where lines have been surveyed in only two angular directions from a lost corner, what data would determine the resurvey? a. Record distance to nearest identified corner in each of the two directions. b. Record bearing to nearest identified corner in each of the two directions. c. Record data, reduced to cardinal equivalents, to nearest identified corner in each of the two directions.	2. What if the data in question 1 resulted in two different points on the ground in a resurvey? a. Use a mean of the two points. b. Run cardinal offsets to intersection. c. Us the one which is closest to the record.
3. Is there any other data which might apply in the above situation? a. Testimony b. Local corners c. Index correction	4. What do we call the above method of locating a lost corner? a. Bearing-bearing intersection b. Two way proportion c. Two point control
5. Using the following information, determine the proportional bearings and distances to restore this lost comer: Course 1: a. S 01° 15' W 40. 005 b. S 01° 10' E 39.995 c. S 01° 08' W 40.008 Course 2: a. S 89° 52' E 40. 015 b. N 88° 28' E 40.014 c. N 89° 08' E 40.018