MCQOPTIONS
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MCQOPTIONS
This section includes 93 Mcqs, each offering curated multiple-choice questions to sharpen your Environment Management knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In August 2018, India rejected Pakistan's objections on its two hydropower projects. Pakal Dul and Lower Kalnai on the _________ river. |
| A. | Kaveri |
| B. | Yamuna |
| C. | Brahmaputra |
| D. | Chenab |
| Answer» E. | |
| 2. |
In July 2019, researchers discovered Dracaena cambodiana, India's first dragon blood-oozing tree in: |
| A. | Madhya Pradesh |
| B. | Assam |
| C. | Odisha |
| D. | Kerala |
| Answer» C. Odisha | |
| 3. |
In which of the following states is the Somasila dam situated? |
| A. | Kerala |
| B. | Telangana |
| C. | Maharashtra |
| D. | Andhra Pradesh |
| Answer» E. | |
| 4. |
Perennial canals are also known as ________ |
| A. | Inundation canal |
| B. | Productive canal |
| C. | Feeder canal |
| D. | Permanent canal |
| Answer» E. | |
| 5. |
The hydrostatic pressures on phreatic line are equal to____ |
| A. | Zero |
| B. | Maximum |
| C. | Minimum |
| D. | Constant |
| Answer» B. Maximum | |
| 6. |
To ensure economy in dam sections, the ______ should be minimum. |
| A. | Base width |
| B. | Top width |
| C. | Spillway length |
| D. | Toe of the wall |
| Answer» B. Top width | |
| 7. |
________ pressure which occurs commonly in dams. |
| A. | Passive earth pressure |
| B. | Active earth pressure |
| C. | Soil moisture tension |
| D. | Wind pressure |
| Answer» C. Soil moisture tension | |
| 8. |
For no _______ to develop in the dam section the resultant should always lie within the middle third. |
| A. | Compression |
| B. | Tension |
| C. | Shear |
| D. | Buckling |
| Answer» C. Shear | |
| 9. |
Calculate the minimum stress developed at the heel of the dam, if the self weight of the dam is 924 kN and the base with is 6 metres [Take e = 0.0945m]. |
| A. | 145 kN/m² |
| B. | 139 kN/m² |
| C. | 167 kN/m² |
| D. | 183 kN/m² |
| Answer» C. 167 kN/m² | |
| 10. |
Calculate the self weight of trapezoidal dam with top width 5m and bottom width 8m. The height of dam is 15 m. Consider specific weight of masonry be 25kN/m³. |
| A. | 3456.5 kN |
| B. | 2768.5 kN |
| C. | 2437.5 kN |
| D. | 3450 kN |
| Answer» D. 3450 kN | |
| 11. |
Expand MWL? |
| A. | Minimum water level |
| B. | Maximum water level |
| C. | Meagre water level |
| D. | Most wind level |
| Answer» C. Meagre water level | |
| 12. |
The side slopes depend on ____________ conditions of a proposed dam. |
| A. | Toe width |
| B. | Height of foundation |
| C. | Character of material |
| D. | Free board allowance |
| Answer» D. Free board allowance | |
| 13. |
Which of the following is not a failure of a rectangular dam? |
| A. | Overturning |
| B. | Toe erosion |
| C. | Sliding |
| D. | Foundation failure |
| Answer» C. Sliding | |
| 14. |
Prestressed concrete is an example of _____________ |
| A. | Malleability |
| B. | Ductility |
| C. | Fatigue |
| D. | Plasticity |
| Answer» D. Plasticity | |
| 15. |
Kiln burning involves 90% of first class bricks. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 16. |
Self weight of dam acts in ___________ direction. |
| A. | Vertical |
| B. | Horizontal |
| C. | Inclined |
| D. | Parallel |
| Answer» B. Horizontal | |
| 17. |
Calculate the eccentricity of a trapezoidal dam with a distance between the centre of gravity and point where the resultant cuts the base is 5m. The bottom width of the dam is 3m. |
| A. | 2.5m |
| B. | 3.5m |
| C. | 4.5m |
| D. | 5m |
| Answer» C. 4.5m | |
| 18. |
______ bricks can withstand up to a temperature of 1800°C. |
| A. | Refractory |
| B. | Fly ash |
| C. | Clay |
| D. | Cement |
| Answer» B. Fly ash | |
| 19. |
If the minimum stress developed is negative, then the nature of stress is ___________ |
| A. | Shearing |
| B. | Tensile |
| C. | Bending |
| D. | Compressive |
| Answer» C. Bending | |
| 20. |
_________ failures contribute 40% to earthen dams. |
| A. | Seepage |
| B. | Structural |
| C. | Hydraulic |
| D. | Natural |
| Answer» D. Natural | |
| 21. |
Calculate the self-weight of the masonry of the rectangle dam of 10 m height and 4 m wide. Consider specific weight of masonry as 20kN/m³. |
| A. | 600 kN |
| B. | 500 kN |
| C. | 800 kN |
| D. | 1000 kN |
| Answer» D. 1000 kN | |
| 22. |
The edges formed by the intersection of plane surfaces of a brick are known as _________ |
| A. | Arises |
| B. | Stretcher |
| C. | Header |
| D. | Frog |
| Answer» B. Stretcher | |
| 23. |
_____ acts as an inspection chamber in Dams. |
| A. | Spillway |
| B. | Heel |
| C. | Drainage gallery |
| D. | Toe |
| Answer» D. Toe | |
| 24. |
Which of the following process will you prefer to prevent the leakage of water in the dam foundation? |
| A. | Guniting |
| B. | Grouting |
| C. | Gam mixing |
| D. | Filling |
| Answer» C. Gam mixing | |
| 25. |
Which of the following is practical pressure? |
| A. | Active earth pressure |
| B. | Passive earth pressure |
| C. | Soil moisture tension |
| D. | Horizontal water pressure |
| Answer» B. Passive earth pressure | |
| 26. |
The angle of internal friction for water is __________ |
| A. | 180° |
| B. | 100° |
| C. | 0° |
| D. | 270° |
| Answer» D. 270° | |
| 27. |
What is the mix proportion for M15 grade concrete? |
| A. | 1:1:2 |
| B. | 1:2:4 |
| C. | 1:3:6 |
| D. | 1:4:8 |
| Answer» C. 1:3:6 | |
| 28. |
______ is the over flow section or portion of the dam. |
| A. | Heel |
| B. | Toe |
| C. | Spillway |
| D. | Gallery |
| Answer» D. Gallery | |
| 29. |
Which of the following is theoretical pressure? |
| A. | Active earth pressure |
| B. | Passive earth pressure |
| C. | Soil Tension |
| D. | Horizontal water pressure |
| Answer» C. Soil Tension | |
| 30. |
Which of the following is an example for plasticizer? |
| A. | Ca |
| B. | Mg |
| C. | Zn |
| D. | Hg |
| Answer» B. Mg | |
| 31. |
Laterite is an example of ___________ rock. |
| A. | Siliceous |
| B. | Argillaceous |
| C. | Calcareous |
| D. | Metamorphic |
| Answer» C. Calcareous | |
| 32. |
_______ is the common type of spillway used in gravity dams. |
| A. | Ogee spillway |
| B. | Trough spillway |
| C. | Side channel spillway |
| D. | Emergency spillway |
| Answer» B. Trough spillway | |
| 33. |
The ratio of the volume of voids to the volume of given soil mass is __________ |
| A. | Porosity |
| B. | Void ratio |
| C. | Dry density |
| D. | Specific gravity |
| Answer» B. Void ratio | |
| 34. |
In sliding failure, the co-efficient of friction varies from ________ |
| A. | 0.65 – 0.75 |
| B. | 0.8 – 0.9 |
| C. | 0.45 – 0.65 |
| D. | 0.85 – 1 |
| Answer» B. 0.8 – 0.9 | |
| 35. |
The minimum standard height for a construction joint is about ________ |
| A. | 1.2 m |
| B. | 1.5 m |
| C. | 2.1 m |
| D. | 2.3 m |
| Answer» C. 2.1 m | |
| 36. |
____________ creates concentrated seepage in dams section. |
| A. | Longitudinal cracks |
| B. | Transverse cracks |
| C. | Construction cracks |
| D. | Contraction cracks |
| Answer» C. Construction cracks | |
| 37. |
The free board is provided in dams to avoid _______________ |
| A. | Piping |
| B. | Foundation of upstream |
| C. | Wave erosion |
| D. | Overtopping |
| Answer» E. | |
| 38. |
By providing ______________ gully formation can be avoided. |
| A. | Berms |
| B. | Aqueduct |
| C. | Spillway |
| D. | Free board |
| Answer» B. Aqueduct | |
| 39. |
Structural failures contribute about _______________ in the failure of dam. |
| A. | 45% |
| B. | 60% |
| C. | 30% |
| D. | 20% |
| Answer» D. 20% | |
| 40. |
_____ dam which resists are the external forces by virtue of its self weight. |
| A. | Earthen dam |
| B. | Storage dam |
| C. | Detention dam |
| D. | Gravity dam |
| Answer» E. | |
| 41. |
Which of the following forces do not act on the dam? |
| A. | Silt pressure |
| B. | Wave pressure |
| C. | Creep pressure |
| D. | Uplift |
| Answer» D. Uplift | |
| 42. |
The elementary profile of a dam is generally a ________ |
| A. | Isosceles triangle |
| B. | Right angled triangle |
| C. | Scalene triangle |
| D. | Equilateral triangle |
| Answer» C. Scalene triangle | |
| 43. |
________ is crystalline and compact in structure. |
| A. | Marbles |
| B. | Granite |
| C. | Kadapa slabs |
| D. | Shahabad stones |
| Answer» B. Granite | |
| 44. |
Calculate the horizontal water pressure acting on a dam. The total depth of water be 13m. Take specific weight of water be 10kN/m³. |
| A. | 765 kN |
| B. | 845 kN |
| C. | 965 kN |
| D. | 1175 kN |
| Answer» C. 965 kN | |
| 45. |
According to IS, the specific gravity of a good building stone used in heavy dams should be ______ |
| A. | 2.2 – 2.4 |
| B. | 2.3 – 2.5 |
| C. | 2.4 – 2.8 |
| D. | 2.6 – 3 |
| Answer» D. 2.6 – 3 | |
| 46. |
Hardness can be measured using _______ |
| A. | Mohr’s scale |
| B. | Silica scale |
| C. | Dalton’s scale |
| D. | Abrasion factor |
| Answer» B. Silica scale | |
| 47. |
Sand layer is an example of ______________ |
| A. | Aquiclude |
| B. | Aquifuge |
| C. | Aquitard |
| D. | Aquifer |
| Answer» E. | |
| 48. |
________ keeps the phreatic line within the dam section. |
| A. | Longitudinal filter |
| B. | Cross filter |
| C. | Rock toe |
| D. | Toe drain |
| Answer» D. Toe drain | |
| 49. |
_____________ sections allow the surplus discharge to flow in dams. |
| A. | Mulching |
| B. | Over reinforced |
| C. | Breaching |
| D. | Balanced |
| Answer» D. Balanced | |
| 50. |
The height of the dam = free board + ___________ |
| A. | FTL |
| B. | MWL |
| C. | FRL |
| D. | HFL |
| Answer» E. | |