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Problem of the Week: August 29

August 29, 2011
Problem of the Week: Topographic Mapping

What is a contour interval?

(A) a line of constant elevation above the reference ellipsoid

(B) the horizontal distance between adjacent contour lines

(C) one-half the vertical spacing of the contour lines specified in the legend of the map

(D) the difference in elevation between adjacent contours

The answer is (D).

This is problem 13 (10-2) from the NEW third edition of “Surveying Solved Problems for the FS and PS Exams” by Jan Van Sickle, PLS (formerly "1001 Solved Surveying Fundamentals Problems"). Reprinted with permission from “Surveying Solved Problems for the FS and PS Exams” by Jan Van Sickle, PLS (2008 Professional Publications Inc.). For details on this and other FLS exam-prep books, call 800/426-1178 or visit www.ppi2pass.com.