Question

Match LIST-I with LIST-II:\[\begin{array}{|c|l|l|} \hline \textbf{LIST-I (Parameter)} & & \textbf{LIST-II (Equipment / method)} \\ \hline \text{A. Stream flow velocity} & & \text{IV. Current meter} \\ \hline \text{B. Evapo-transpiration rate} & & \text{II. Penman's method} \\ \hline \text{C. Infiltration rate} & & \text{III. Norton's method} \\ \hline \text{D. Wind velocity} & & \text{I. Anemometer} \\ \hline \end{array}\] Choose the most appropriate match from the options given below:

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

Hint:

Remember: current meter $\rightarrow$ stream velocity, anemometer $\rightarrow$ wind speed, and Penman $\rightarrow$ evapotranspiration.

Answer 1

The Correct Option is C

Step 1: Identify the standard instrument/method for each parameter.
- Stream flow velocity is determined using a current meter, corresponding to A $\to$ IV.
- Evapo-transpiration rate is typically calculated using Penman's method, matching B $\to$ II.
- Infiltration rate is assessed via Horton/Norton-type infiltration models, linking C $\to$ III.
- Wind velocity is measured with an anemometer, aligning with D $\to$ I.

Step 2: Finalize the matching.
The correct pairings are A–IV, B–II, C–III, and D–I, which corresponds to option (3).