MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Irrigation Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the correct formula for uniformity coefficient efficiency? |
| A. | Nd = 1 – d/D |
| B. | Nd = 1 + d/D |
| C. | Nd = 1 – D/d |
| D. | Nd = 1 + D/d |
| Answer» B. Nd = 1 + d/D | |
| 2. |
The water distribution efficiency is 1.0 if _____________ |
| A. | the deviation from the mean depth is 1 |
| B. | the deviation from the mean depth is 0 |
| C. | the deviation from the mean depth is less than 1 |
| D. | the deviation from the mean depth is greater than 1 |
| Answer» C. the deviation from the mean depth is less than 1 | |
| 3. |
Uniformity coefficient is also known as ____________ |
| A. | water conveyance efficiency |
| B. | consumptive use efficiency |
| C. | water distribution efficiency |
| D. | water storage efficiency |
| Answer» D. water storage efficiency | |
| 4. |
Determine the distribution efficiency, if the depths of water in the field are 1.1 cm and 1.8 cm. |
| A. | 80% |
| B. | 90% |
| C. | 85% |
| D. | 75% |
| Answer» E. | |
| 5. |
If the water losses are more, the output and the efficiency is more. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The quantity of water that is pumped into a farm distribution system is 2 cumec. 1.6 cumec is delivered to a turn-out, 1km from the well. Compute the conveyance efficiency. |
| A. | 80% |
| B. | 20% |
| C. | 50% |
| D. | 60% |
| Answer» B. 20% | |
| 7. |
Which of the following statement is wrong about consumptive use efficiency? |
| A. | It is the ratio of normal consumptive use of water to the net amount of water depleted from the root zone |
| B. | It accounts for the loss of water by deep percolation |
| C. | Evaporation losses are considered |
| D. | The losses due to percolation and evaporation are not considered |
| Answer» E. | |
| 8. |
The presence of excess salts in the soil requires _____________ |
| A. | high water storage efficiency |
| B. | low water storage efficiency |
| C. | high water application efficiency |
| D. | high water use efficiency |
| Answer» B. low water storage efficiency | |
| 9. |
The mean depth of water is 1.5 cm and the mean deviation from the mean is 0.1 cm. Determine its distribution efficiency. |
| A. | 15% |
| B. | 85% |
| C. | 66.66% |
| D. | 93% |
| Answer» E. | |
| 10. |
The quantity of water beneficially used is the sum of the water used by the crops and the water used for leaching. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
What is water conveyance efficiency? |
| A. | The ratio of the quantity of water delivered to the field and quantity of water pumped into the canal |
| B. | The ratio of water stored in the root zone and the water delivered to the field |
| C. | The ratio of water used beneficially and the water delivered to the field |
| D. | The ratio of water stored in the root zone and the water needed before irrigation |
| Answer» B. The ratio of water stored in the root zone and the water delivered to the field | |
| 12. |
Which efficiency is also called on-farm efficiency? |
| A. | Water conveyance efficiency |
| B. | Water application efficiency |
| C. | Water storage efficiency |
| D. | Water use efficiency |
| Answer» C. Water storage efficiency | |