Question

If cross slope of a country is greater than 60\%, the terrain is classified as

• A. Rolling
• B. Mountainous
• C. Steep
• D. Plain

Hint:

- Steeper terrains require specialized road design and construction due to erosion, drainage, and slope stability issues. - Proper classification helps in selecting appropriate transportation and land use planning strategies.

Answer 1

The Correct Option is C

Step 1: Terrain classification is based on slope percentages: Plain terrain: Slope less than 10\%. Rolling terrain: Slope between 10\% - 30\%. Mountainous terrain: Slope between 30\% - 60\%. Steep terrain: Slope greater than 60\%. Step 2: Since the question states that the cross slope is greater than 60\%, the correct classification is Steep terrain. Thus, the correct answer is (C) Steep.