Question

Match LIST I with LIST II
\[ \begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \hline A. \ \text{Tracy's law} & I. \ \text{Vertical Drainage} \\ B. \ \text{Hooghoudt equation} & II. \ \text{Hydraulic conductivity} \\ C. \ \text{Biodrainage} & III. \ \text{Trees like poplar} \\ D. \ \text{Drainage well} & IV. \ \text{Spacing of tile drains} \\ \hline \end{array} \]
Choose the correct answer from the options given below:

• A. A-II, B-IV, C-III, D-I
• B. A-II, B-I, C-IV, D-III
• C. A-III, B-IV, C-II, D-I
• D. A-II, B-IV, C-III, D-I

Hint:

For drainage concepts, remember these key associations: - \textbf{Hooghoudt/Ernst:} Spacing of horizontal drains. - \textbf{Drainage Well:} Vertical drainage. - \textbf{Biodrainage:} Using plants/trees for water removal.

Answer 1

The Correct Option is A

Step 1: Match each term in LIST I with its correct definition or application in LIST II.
- A. Tracy's law: This is likely a reference to a method for determining II. Hydraulic conductivity, though it is not as common as other methods. (This requires specific domain knowledge).
- B. Hooghoudt equation: This is one of the most famous and widely used steady-state equations in agricultural drainage for calculating the IV. Spacing of tile drains based on soil properties and desired water table depth.
- C. Biodrainage: This is a drainage technique that uses vegetation to remove excess soil water through transpiration. Fast-growing, deep-rooted III. Trees like poplar and eucalyptus are commonly used for this purpose.
- D. Drainage well: This is a well that is pumped to lower the water table over a large area. It removes water from deeper aquifers and is a form of I. Vertical Drainage, as opposed to horizontal pipe drains.
Step 2: Compile the correct pairings.
- A \(\rightarrow\) II
- B \(\rightarrow\) IV
- C \(\rightarrow\) III
- D \(\rightarrow\) I
This combination corresponds to option (A).