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Problem of the Week: August 15

August 15, 2011
Problem of the Week: Scale

What flight height would be required to produce vertical photographs with a scale of 1:12,000 over level terrain if the average elevation is 3300 ft and the focal length of the camera is 8 in?

(A) 8200 ft

(B) 10,000 ft

(C) 11,300 ft

(D) 15,300 ft

The answer is (C).

This is problem 32 (8-4) 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.