Section 4: Soil and Water Conservation Engineering
Soil Conservation Structures
Subtopic: Broad-Base Terracing
Question Statement:
A broad-base terrace differs from a standard narrow-base ridge terrace because:
Options:
(A) Its gentle side slopes allow standard farm machinery to cultivate crops over the entire embankment ridge and channel
(B) It is built entirely of masonry stone walls
(C) It cannot carry any surface runoff
(D) It requires hand labour and excludes tractor farming
Answer Key:
A
Step-by-Step Solution & Explanation
Broad-base terraces feature wide gentle side slopes ($4\text{ to }8\text{ m}$ base), allowing tractors, seed drills, and combines to traverse and crop the entire bund surface without taking land out of production.