NICET - Highway Construction Inspection Practice Exam

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What does slope ratio refer to?

The ratio of the rise over run of a slope.
The inverse ratio of the rise over run.
The relative steepness of two lines.
The ratio of vertical to horizontal distances.

The correct answer is: The inverse ratio of the rise over run.

Slope ratio is fundamentally a way to describe the inclination or steepness of a slope in relation to horizontal distance. It specifically refers to the ratio of the vertical change (rise) to the horizontal change (run). This means it quantifies how much a slope rises vertically for a given horizontal distance. In terms of its formula, slope ratio is typically calculated as the rise divided by the run. This reflects how steep or gentle the slope is. Understanding the slope ratio is crucial in construction and engineering, particularly for design and safety considerations, like drainage, road construction, and earthworks. The choice indicating the ratio as the inverse of rise over run misrepresents the basic definition and function of slope ratios. A proper understanding of slope ratio as the direct comparison of rise to run is essential for accurate application in real-world scenarios.