| Q.23 | Choose the correct equation regarding the non-recording rain gauge. | |
| Ans | 1. Depth of rain fallen = Volume of water collected + Area of aperture of the gauge | |
| 2. Depth of rain fallen = Volume of water collected – Area of aperture of the gauge | ||
| 3. Depth of rain fallen = Volume of water collected/Area of aperture of the gauge | ||
| 4. Depth of rain fallen = Volume of water collected * Area of aperture of the gauge |
Correct Ans Provided: 3