| Q.120 | Which of the following is NOT an assumption made in unit hydrograph theory? | |
| Ans | 1. Time duration of hydrograph of direct runoff due to an effective rainfall of unit duration is constant. | |
| 2. Effective rainfall is uniformly distributed within its duration. | ||
| 3. Ordinates of direct runoff of common base time are inversely proportional to the total amount of direct runoff represented by each hydrograph. | ||
| 4. Effective rainfall is uniformly distributed throughout the whole area of the drainage basin. |
Correct Ans Provided: 3
