Section 4: Soil and Water Conservation Engineering
Hydrology
Subtopic: Hydrological cycle and measurement of its components
Question Statement:
Match the following instruments (in Column I) with corresponding measurements (in Column II):
| Column I | Column II |
|---|---|
| P. Current meter | 1. Solar radiation |
| Q. Anemometer | 2. Rainfall |
| R. Hygrometer | 3. Stream flow velocity |
| S. Symon’s gauge | 4. Humidity |
| T. Pyranometer | 5. Wind speed |
Options:
(A) P-3, Q-5, R-4, S-2, T-1
(B) P-2, Q-3, R-5, S-1, T-4
(C) P-1, Q-2, R-3, S-4, T-5
(D) P-5, Q-4, R-1, S-3, T-2
Official Answer Key:
A
Step-by-Step Solution & Explanation
P. Current meter → 3. Stream flow velocity. A propeller or cup-type rotating element whose revolution rate is calibrated against flow velocity; the standard instrument for stream gauging.
Q. Anemometer → 5. Wind speed. Cup or vane instrument for measuring wind velocity.
R. Hygrometer → 4. Humidity. Measures atmospheric moisture content.
S. Symon’s gauge → 2. Rainfall. The standard non-recording raingauge used in India.
T. Pyranometer → 1. Solar radiation. Measures global (hemispherical) short-wave radiation.
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