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Surveying FS

Category - Data Acquisition

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What is the rate of grade of a 225 ft street with a drop in elevation of 5 ft?

-97.78%
-2.22%
2.22%.
97.78%

Explanation

Answer: B -The rate of grade of a 225 ft street with a drop in elevation of 5 ft is -2.22%.

Solution

Gradient = (change in vertical elevation/horizontal difference)

Gradient = (-5 ft)/225 ft = -0.022 ft/ft = -2.22%

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