MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 42 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A person standing inside "Faraday cage" is not affected by electric field because |
| A. | electric potential is positive |
| B. | electric potential is negative |
| C. | zero electric potential |
| D. | electric field outside the cage cancels the field inside |
| Answer» E. | |
| 2. |
Select the incorrect statement from the following option. |
| A. | Intermediate compound formation theory fails to explain the action of promoters |
| B. | Intermediate compound formation theory fails to explain the function of a catalyst in homogeneous reactions |
| C. | Intermediate compound formation theory fails to explain the action of catalytic poisons |
| D. | Intermediate compound formation theory fails to explain the function of catalyst in heterogeneous reactions |
| Answer» C. Intermediate compound formation theory fails to explain the action of catalytic poisons | |
| 3. |
The ratio of the rate of change of discharge of an outlet and parent channel, is known as |
| A. | Efficiency |
| B. | Sensitivity |
| C. | Flexibility |
| D. | Modular limit |
| Answer» D. Modular limit | |
| 4. |
A river is said to be of |
| A. | Aggrading type if it builds up its bed to a certain slope |
| B. | Degrading type if it cuts its bed to a certain slope |
| C. | Meandering type if it flows in sinuous curve |
| D. | All the above |
| Answer» E. | |
| 5. |
Regime conditions in a channel may occur if |
| A. | Discharge is constant |
| B. | Channel flows uniformly in incoherent alluvium as that transported in suspension |
| C. | Silt grade and silt charge are constant |
| D. | All the above |
| Answer» E. | |
| 6. |
If V0 is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to |
| A. | V0 1/2 |
| B. | V0 3/2 |
| C. | V0 5/2 |
| D. | V0 7/2 |
| Answer» D. V0 7/2 | |
| 7. |
If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is |
| A. | x = r1 d1 |
| B. | x = r2 d2 |
| C. | x = d1 / r1 |
| D. | x = d2 / r2 |
| Answer» C. x = d1 / r1 | |
| 8. |
The main function of a diversion head works of a canal from a river, is |
| A. | To remove silt |
| B. | To control floods |
| C. | To store water |
| D. | To raise water level |
| Answer» E. | |
| 9. |
In a canal syphon, the flow is |
| A. | Under atmospheric pressure |
| B. | Pipe flow |
| C. | With critical velocity |
| D. | Under negative pressure |
| Answer» C. With critical velocity | |
| 10. |
Irrigation canals are generally aligned along |
| A. | Ridge line |
| B. | Contour line |
| C. | Valley line |
| D. | Straight line |
| Answer» B. Contour line | |
| 11. |
Pick up the incorrect statement from the following |
| A. | Side walls of a venturi head flume are splayed out from the end of the throat at 1 : 10 for a length of 4.5 m |
| B. | Length of side walls should be such that the width of the flume is made equal to 2/3rd the bed width of the distributary |
| C. | Once the width of the flume becomes 2/3rd of the width of the distributary, the splayed walls are increased to 1 in 3 to get full bed width |
| D. | None of these |
| Answer» E. | |
| 12. |
For the design of major hydraulic structures on the canals, the method generally preferred to, is based on |
| A. | Blighs theory |
| B. | Electrical analogy method |
| C. | The relaxation method |
| D. | Khoslas method of independent variables |
| Answer» E. | |
| 13. |
The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to |
| A. | 1 to 2 m per second |
| B. | 2 to 3 m per second |
| C. | 3 to 4 m per second |
| D. | 4 to 5 m per second |
| Answer» C. 3 to 4 m per second | |
| 14. |
For a standing crop, the consumptive use of water is equal to the depth of water |
| A. | Transpired by the crop |
| B. | Evaporated by the crop |
| C. | Transpired and evaporated by the crop |
| D. | Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil |
| Answer» E. | |
| 15. |
According to Bligh's creep theory, percolating water flows along |
| A. | Straight path under the foundation of the dam |
| B. | Circular path under the foundation of the dam |
| C. | The outline of the base of the foundation of the dam |
| D. | None of these |
| Answer» E. | |
| 16. |
The level of the floor of a syphon aqueduct can be obtained |
| A. | By subtracting the depth of the culvert from the canal bed level |
| B. | By subtracting the thickness of culvert plus the depth of the culvert from the canal bed level |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» C. Both (a) and (b) | |
| 17. |
The most suitable section of a lined canal, is |
| A. | Triangular section with circular bottom for small canals |
| B. | Trapezoidal section with rounded corners for large canals |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 18. |
According to Lacey, in regime conditions |
| A. | Silt is kept in suspension by vertical components of eddies |
| B. | Entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter |
| C. | Both (a) and (b) |
| D. | Neither (a) nor (b) |
| Answer» D. Neither (a) nor (b) | |
| 19. |
According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is |
| A. | 1.25 D |
| B. | 1.50 D |
| C. | 1.75 D |
| D. | 2.00 D |
| Answer» E. | |
| 20. |
Cross regulators in main canals are provided |
| A. | To regulate water supply in the distributaries |
| B. | To increase water head upstream when a main canal is running with low supplies |
| C. | To overflow excessive flow water |
| D. | None of these |
| Answer» C. To overflow excessive flow water | |
| 21. |
If the optimum depth of kor watering for a crop is 15.12 cm, the outlet factor for the crop for four week period in hectares per cumec, is |
| A. | 1000 |
| B. | 1200 |
| C. | 1400 |
| D. | 1600 |
| Answer» E. | |
| 22. |
A hydraulic structure is designed to withstand |
| A. | Seepage forces |
| B. | Hydraulic jump |
| C. | Hydraulic pressure |
| D. | All the above |
| Answer» E. | |
| 23. |
According to Khosla, the exits gradient of surface flow |
| A. | Depends upon the b/d ratio |
| B. | Is independent of the b/d ratio |
| C. | Is independent of the depths of d/s cut off walls |
| D. | None of these |
| Answer» B. Is independent of the b/d ratio | |
| 24. |
The sinuosity of a meander is the ratio of |
| A. | Meander length and the width of meander |
| B. | Meander length and half width of the river |
| C. | Curved length and the straight distance |
| D. | None of these |
| Answer» D. None of these | |
| 25. |
Borrow pits should preferably be located in |
| A. | Field on the left side of the canal |
| B. | Field on the right side of the canal |
| C. | Fields on both sides of the canal |
| D. | Central half width of the section of the canal |
| Answer» E. | |
| 26. |
The measure to remove water logging of land, is |
| A. | To reduce percolation from canals and water courses |
| B. | To increase outflow from the ground water reservoir |
| C. | Both (a) and (b) |
| D. | Neither (a) nor (b) |
| Answer» D. Neither (a) nor (b) | |
| 27. |
Pick up the correct statement from the following |
| A. | In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal |
| B. | In a level crossing a regulator is provided across the drainage at its down-stream |
| C. | In a level crossing, a cross regulator is provided on the canal below the crossing |
| D. | All the above |
| Answer» E. | |
| 28. |
When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called |
| A. | Syphon |
| B. | Aqueduct |
| C. | Super passage |
| D. | Syphon-aqueduct |
| Answer» D. Syphon-aqueduct | |
| 29. |
The main cause of silting up a channel, |
| A. | Non-regime section |
| B. | Inadequate slope |
| C. | Defective head regulator |
| D. | All the above |
| Answer» E. | |
| 30. |
The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called |
| A. | Syphon |
| B. | Super passage |
| C. | Super-aqueduct |
| D. | Syphon aqueduct |
| Answer» E. | |
| 31. |
For a unique design of a channel by Kennedy's theory |
| A. | Its breadth must only be known |
| B. | Its depth must only be known |
| C. | Its breadth and depth ratio must only be known |
| D. | All the above |
| Answer» D. All the above | |
| 32. |
The water face of the guide banks, is protected by |
| A. | One men stone pitching |
| B. | Two man stone pitching |
| C. | Three man stone pitching |
| D. | Four man stone pitching |
| Answer» B. Two man stone pitching | |
| 33. |
The field capacity of a soil depends upon |
| A. | Capillary tension in soil |
| B. | Porosity of soil |
| C. | Both (a) and (b) |
| D. | Neither (a) nor (b) |
| Answer» D. Neither (a) nor (b) | |
| 34. |
Pick up the correct sequence of the part of a canal system from the following |
| A. | Head work-distributary-branch canal-minor |
| B. | Head works-main canal-branch canal-distributary-minor |
| C. | Head works-main canal-branch canal-minor-distributary |
| D. | Heads works-branch canal-main canal distributary, minor |
| Answer» C. Head works-main canal-branch canal-minor-distributary | |
| 35. |
To hold hydraulic jumps, baffle walls are provided in |
| A. | Sarda type falls |
| B. | English type falls |
| C. | Montague type falls |
| D. | Vertical type falls |
| Answer» C. Montague type falls | |
| 36. |
If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation |
| A. | t = (h + 1)/(G + t) |
| B. | t = (h - 1)/(G + t) |
| C. | t = (h - 1)/(G - t) |
| D. | t = (h + 1)/G |
| Answer» D. t = (h + 1)/G | |
| 37. |
In a syphon aqueduct |
| A. | Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough |
| B. | Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough |
| C. | Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough |
| D. | Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough |
| Answer» D. Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough | |
| 38. |
If water table is comparatively high, the irrigation canal becomes useless, due to |
| A. | Large amount of seepage |
| B. | Water logging of the cultivated areas |
| C. | Uncertain water demand |
| D. | All the above |
| Answer» E. | |
| 39. |
The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5. If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is |
| A. | 8 cm |
| B. | 10 cm |
| C. | 12 cm |
| D. | 14 cm |
| Answer» D. 14 cm | |
| 40. |
In gravity canals, F.S.L. is |
| A. | Always at the ground level |
| B. | Always below the ground level |
| C. | Generally 4 to 5 metres above the ground level |
| D. | Only a few cm above the ground level |
| Answer» E. | |
| 41. |
Canals taken off from ice-fed perennial rivers, are known |
| A. | Permanent canals |
| B. | Ridge canals |
| C. | Perennial canals |
| D. | Inundation canals |
| Answer» D. Inundation canals | |
| 42. |
The consumptive use of water for a crop |
| A. | Is measured as the volume of water per unit area |
| B. | Is measured as depth of water on irrigated area |
| C. | May be supplied partly by precipitation and partly by irrigation |
| D. | All the above |
| Answer» E. | |