Question

Contour bunding is technically not feasible if the land slope is greater than:

• A. 3%
• B. 5%
• C. 6%
• D. 10%

Hint:

Contour bunding: up to 6% slope.
Graded bunding: up to 10% slope.
Terracing: for steeper slopes.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Contour bunding is a soil conservation practice.
It involves constructing bunds along contour lines.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the slope limits for contour bunding.

Step 3: Detailed Explanation:
Contour bunding is technically feasible on slopes up to 6%.
Beyond this, the cost and effectiveness become impractical.
For steeper slopes, other measures like terracing are used.
Thus, it is not feasible on slopes greater than 6%.

Step 4: Final Answer:
Contour bunding is not feasible if the slope is greater than 6%.
Hence, the correct option is (C).