lt; 1.0\text{ m}$ depth) to arrest sediment whi... Explore step-by-step solution, answer key, and exam analytics on GATE AG Prep Portal." />
lt; 1.0\text{ m}$ depth) to arrest sediment whi... Explore step-by-step solution, answer key, and exam analytics on GATE AG Prep Portal." />
Question Bank • QB_SWCE_ADV_163MCQ • 1 Mark
Section 4: Soil and Water Conservation Engineering
Watershed Management
Subtopic: Check dams and farm ponds
Question Statement:
A temporary porous barrier constructed using local loose stones or brushwood across small, narrow gully branches (lt; 1.0\text{ m}$ depth) to arrest sediment while allowing excess water to filter through is termed a:
Options:
(A) Gully plug
(B) Gravity masonry dam
(C) Morning glory spillway
(D) Inverted syphon
Answer Key:
A
Step-by-Step Solution & Explanation
Gully plugs (loose stone check dams) are low-cost, permeable barriers constructed across small first-order gully tributaries to trap coarse sediment, stabilize bed grades, and facilitate vegetative establishment. Option A is correct.