MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
The water flows at a depth of 0.6 m in a wide stream having a bed slope of 1 in 2500. The critical tractive stress is 0.53 N/m2. Determine the motion of soil grains and the average shear stress. |
| A. | 2.35 N/m<sup>2</sup> and soil grains will be stationary |
| B. | 2.35 N/m<sup>2</sup> and soil grains is in motion |
| C. | 0.235 N/m<sup>2</sup> and soil grains will be stationary |
| D. | 0.235 N/m<sup>2</sup> and soil grains is in motion |
| Answer» C. 0.235 N/m<sup>2</sup> and soil grains will be stationary | |
| 2. |
A wide unlined channel carrying silt-free water has a depth of 2.0 m. The maximum slope that can be given to a channel is 1 in 10,000. Calculate the maximum tractive stress permissible on the bed to prevent scouring. |
| A. | 0.2 kg/m<sup>2</sup> |
| B. | 1.962 kg/m<sup>2</sup> |
| C. | 2 kg/m<sup>2</sup> |
| D. | 1 kg/cm<sup>2</sup> |
| Answer» B. 1.962 kg/m<sup>2</sup> | |
| 3. |
For the bed of the canal, the average shear stress is equal to the tractive force per unit area. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The basic mechanism behind the phenomenon of sediment transport is ______________ |
| A. | drag force opposite to the direction of the flow |
| B. | drag force in the direction of the flow |
| C. | free motion of the sediment particles |
| D. | force exerted by water vertically |
| Answer» C. free motion of the sediment particles | |
| 5. |
The soil is assumed to be coherent in the study of the mechanism of sediment transport. |
| A. | True |
| B. | False |
| Answer» C. | |