Question

A clear zone avigation easement with a 34:1 slope begins at ground level 200 ft from the end of an active airport runway. The natural ground slope moving away from a point 200 ft from the end of the runway is 0.5% in an uphill direction. At what distance (ft) from the end of the runway can a 35-ft-tall structure be located and not violate the clear zone easement? 47. (A) 1,434 (B) 1,593 (C) 1,634 (D) 1,675

Answer 1

h/x = 0.5/100 = > 0.5 x - 100 h = 0 --(1) & 35 + h/x = 1/34 = > x - 34 h = 1190--(2) from (1) & (2) we get x = 1434 ft So, answer is 200 + 1434 = 1634 ft