Problem:Surveying Instruments and Procedures: Taping

Problem: Surveying Instruments and Procedures: Taping

Any unsupported portion of a steel tape sags in an arc known by which of the following names?

(A) a cycloid
(B) a parabola
(C) a helical arc
(D) a catenary

This is problem 51(6-38) from the new second edition of1001 Solved Surveying Problemsby Jan Van Sickle. Reprinted with permission from1001 Solved Surveying Problemsby Jan Van Sickle (1997, 728 pp., Professional Publications Inc.). For details on this and other FLS exam-prep books, call 800/426-1178 or

Answer: D

A steel tape not supported throughout its length will assume the form of a catenary.