Section 4: Soil and Water Conservation Engineering
Hydrology
Subtopic: Meteorological parameters and their measurement
Question Statement:
Match the isolines in Column I with the corresponding meteorological or hydrological variables in Column II:
| Column I | Column II |
|---|---|
| P. Isopleth | 1. Rainfall |
| Q. Isobath | 2. Pressure |
| R. Isohyet | 3. Evapotranspiration |
| S. Isochrone | 4. Groundwater |
| T. Isobar | 5. Surface runoff |
Options:
(A) P-4, Q-3, R-1, S-5, T-2
(B) P-5, Q-4, R-1, S-3, T-2
(C) P-3, Q-4, R-1, S-5, T-2
(D) P-3, Q-4, R-2, S-5, T-1
Official Answer Key:
C
Step-by-Step Solution & Explanation
Isopleth (P) — general term used here for lines of equal evapotranspiration (3). Isobath (Q) — lines of equal groundwater depth (4). Isohyet (R) — lines of equal rainfall (1), the standard definition. Isochrone (S) — lines of equal travel time, used for surface runoff/hydrograph analysis (5). Isobar (T) — lines of equal atmospheric pressure (2), the standard definition.
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