MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
Which of the following is incorrect about the identification of CNS material? |
| A. | The CNS material can be identified by using A-line chart |
| B. | The permissible deformation of the CNS layer is 20 mm |
| C. | The swelling pressure should not exceed 10 KN/m<sup>2</sup> |
| D. | The soil with liquid limit less than 30% and plastic index less than 15% is considered suitable |
| Answer» E. | |
| 2. |
CNS material shall be non-swelling with a minimum of ___________ |
| A. | 10 KN/m<sup>2</sup> of cohesion |
| B. | 15 KN/m<sup>2</sup> of cohesion |
| C. | 20 KN/m<sup>2</sup> of cohesion |
| D. | 30 KN/m<sup>2</sup> of cohesion |
| Answer» B. 15 KN/m<sup>2</sup> of cohesion | |
| 3. |
Safety ladders are provided in large irrigation canals to ______________ |
| A. | enable the fish to pass from one place to another |
| B. | enable the cattle to cross the canal |
| C. | enable the swimmers to get out of the canal |
| D. | provide safe exit to avoid accidental drowning |
| Answer» E. | |
| 4. |
If the free swell index of soil is more than 100, the soil may be expansive. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Safety ladders are generally provided on ___________ |
| A. | side slopes |
| B. | bed slopes |
| C. | anywhere on the canal |
| D. | both side slopes and bed slopes |
| Answer» B. bed slopes | |
| 6. |
What is the recommended value of CNS thickness to be used for lining over expansive soil with swelling pressure of 200-300 KN/m2? |
| A. | 75 to 85 cm |
| B. | 90 to 100 cm |
| C. | 105 to 125 cm |
| D. | > 125 cm |
| Answer» C. 105 to 125 cm | |
| 7. |
The larger the thickness of CNS introduced over the expansive soil, the more will be the resulting swelling in soil. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Which of the following statement is incorrect about Expansive soils? |
| A. | Expansive soils exhibit shrinkage and swelling properties |
| B. | They have high compressibility and liquid limits with more than 50 |
| C. | Black cotton soil is the most common expansive soil in India |
| D. | The lesser the swelling pressure, the more troublesome is the soil |
| Answer» E. | |