Home» Online Test » Civil Engineering » Irrigation Engineering Online Test » Paper 1 » Paper 2 » Paper 3 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This is a FREE online test. Beware of scammers who ask for money to attend this test. Get New Questions in Each Attempt Total Questions: 50 Time Allotted: 50 minutes Passing Score: 70% Randomization: Yes Certificate: Yes Do not refresh the page! 👍 All the best! 1 / 50 1. The method of irrigation, in which land surrounded by natural or artificial banks is flooded, is known as a) broad irrigation b) natural irrigation c) basin irrigation d) none of the above 2 / 50 2. According to Kennedy's theory, the silt supporting eddies are generated due to a) roughness of the bed b) roughness of the sides c) both (a) and (b) above d) none of the above 3 / 50 3. *Drop structures in the canal are provided for a) providing a bridge b) energy dissipation c) maintaining ground slope d) creating high velocity 4 / 50 4. *The elementary profile of a dam is a) a trapezoidal b) a right-angled triangle c) rectangular d) none of the above 5 / 50 5. The types of reservoirs in which water control devices are not provided are known as: a) retarding reservoir b) detention reservoir c) both (a) and (b) d) none of the above 6 / 50 6. The supply passing down the parent channel is controlled by a) head regulator b) cross regulator c) distributary head regulator d) all of the above 7 / 50 7. Boron concentration in water for irrigation should be limited to a) 2 ppm b) 20 ppm c) 200 ppm d) 500 ppm 8 / 50 8. The silting in a channel occurs due to a) defective outlet b) defective head regulator c) channel not in regime d) all of the above 9 / 50 9. The crop that improves the nitrogen content of the soil is a) aquatic crop b) perennial crop c) leguminous crop d) all of the above 10 / 50 10. *For no tension to develop at the base of a gravity dam, the maximum permissible eccentricity is a) B/6 b) B/3 c) B/2 d) all of the above 11 / 50 11. A sudden fall of the level of the ground along the alignment of the canal joined by an inclined bed is called a a) jump b) sudden fall c) rapid fall d) hydraulic jump 12 / 50 12. *The meandering river is always a) maximum discharge b) average discharge c) dominant discharge d) none of the above 13 / 50 13. A repelling groyne is aligned a) parallel to bank b) perpendicular to bank c) pointing up stream d) pointing down stream 14 / 50 14. Weirs designed and constructed on Bligh's theory failed due to a) undermining of floors b) undermining of the sub-soil c) undermining of the foundation work d) all of the above 15 / 50 15. *In a syphon aqueduct, the maximum uplift pressure on the floor occurs when a) the canal is full b) the canal is full and drainage is dry c) the canal is empty and the water table in the stream rises to the canal bed d) both canal and drainage are full 16 / 50 16. The velocity at which eddies in the flow die out is called a) critical velocity b) lower critical velocity c) higher critical velocity d) none of the above 17 / 50 17. A hydraulic structure is designed to withstand a) seepage b) hydraulic jump c) hydraulic pressure d) all of the above 18 / 50 18. The minimum size of the stone that will remain at rest in a channel of longitudinal slope, S, and hydraulic mean depth, R, is given by a) 4 RS b) 7 RS c) 11 RS d) 14 RS 19 / 50 19. The factor affecting the pattern of sediment deposition in a reservoir is a) sediment size b) shape of the reservoir c) river valley slope d) all of the above 20 / 50 20. Boulder lining is useful where a) the groundwater level is above the bed of the canal b) prevention of erosion is required c) both (a) and (b) above d) none of the above 21 / 50 21. Find the culturable command area from the following data. GCA = 400 Ha, wheat = 200 Ha, maize = 50 Ha, paddy = 100 Ha, barren land = 50 Ha a) 200 Ha b) 150 Ha c) 50 Ha d) 350 Ha 22 / 50 22. An impervious wall inside an earthen dam to reduce seepage is known as a) core wall b) diaphragm wall c) pug wall d) all of the above 23 / 50 23. *Weed growth in a canal leads to a) an increase in discharge b) a decrease in silting c) a decrease in discharge d) an increase in the velocity of flow 24 / 50 24. *In a concrete-lined canal, the permissible velocity of water is a) 1 m/sec b) 2 m/sec c) 3 m/sec d) 4 m/sec 25 / 50 25. River resulting from a deficit of sediments in flowing water is a) degrading type b) aggrading type c) meandering type d) none of the above 26 / 50 26. *The maximum velocity in a circular channel of diameter D occurs when the depth of flow is a) 3.50 D b) 0.73 D c) 0.81 D d) 0.90 D 27 / 50 27. The discharge capacity of the undersluice is a) twice the maximum discharge of the off-taking canal b) 20% of maximum flood discharge c) maximum winter discharge d) greatest of all of the above 28 / 50 28. *Rugosity coefficient for a silt clay a) 0.0225 b) 0.025 c) 0.0275 d) 0.03 29 / 50 29. The kor depth for rice is 19 cm, and the kor period is 14 days. The outlet factor for this will be a) 473 hectares/m³/sec b) 637 hectares/m³/sec c) 837 hectares/m³/sec d) none of the above 30 / 50 30. A groyne with a curved head is known as a) Burma groyne b) Dehny groyne c) Hockey groyne d) Meandering groyne 31 / 50 31. *Drain over the irrigation canal is achieved by providing a) a siphon b) super passage c) an aqueduct d) both (a) and (b) above 32 / 50 32. Which of the following is a leguminous crop? a) rice b) potato c) groundnut d) hemp 33 / 50 33. *Which is the best hydraulic section of the following open channel cross-section? a) Rectangle b) Triangle c) Trapezoidal d) Semicircle 34 / 50 34. The mean velocity, for a channel of given depth, which will just keep the channel free from silting or scouring its bed throughout the year, is called a) optimum velocity b) ideal velocity c) critical velocity d) all of the above 35 / 50 35. *A river training work is generally required when the river is a) aggrading type b) degrading type c) meandering type d) stable type 36 / 50 36. Whenever an embankment has to be built on unreliable soil, provision is made for a) sand core b) percolation c) clay puddle d) all of the above 37 / 50 37. A straight or curved retaining wall with its profile gradually changing from one slope to another is called a) curtain wall b) back wall c) flarred wall d) parapet wall 38 / 50 38. An excavation in the base of a dam or other structures filled with relatively impervious material to reduce percolation is called a) cut-off trench b) key trench c) both (a) and (b) of above d) none of the above 39 / 50 39. A multipurpose reservoir is a) planned and constructed to serve various purposes b) designed for one purpose but serves more purposes c) both (a) and (b) d) none of the above 40 / 50 40. *Surface float method is used for the velocity measurement while the current meter is used for the measurement of a) discharge b) velocity c) depth d) amount of silt 41 / 50 41. On rolling land, the method of applying water is a) check flooding b) free flooding c) border flooding d) furrow flooding 42 / 50 42. *After entering the canal, sediments are removed by the a) silt ejector b) silt excluder c) silt regulator d) none of the above 43 / 50 43. A crop that takes more than 4 months to mature is called a) solid crop b) long crop c) hard crop d) cash crop 44 / 50 44. The most suitable section of a lined canal is a) triangular section with a circular bottom for small canals b) trapezoidal section with rounded corners for large canals c) both (a) and (b) above d) none of the above 45 / 50 45. Find the delta for a crop if the base period and duty are 110 days and 1400 he/cumec respectively. a) 38 cm b) 48 cm c) 58 cm d) 68 cm 46 / 50 46. In an ion exchange process when ions are transported from water to solid, ion-exchange media is fixed or fluidized bed, the process is termed as a) flocculation b) demineralization c) ion-exchange d) deionization 47 / 50 47. An aggrading river is a) scouring river b) silting river c) both (a) and (b) of above d) none of the above 48 / 50 48. In waterlogged lands a) the soil pores are within a depth of 1 meter b) the soil pores are saturated up to the root zone of the crop c) the soil pores are saturated up to the depth of 40cm d) the soil pores are saturated up to the top 49 / 50 49. *Bell bunds are a) guide bands for training a river at the site of a bridge or weir b) barriers made of timber, filled with stone or other suitable material c) fixed distances over which surface floats are lined d) none of the above 50 / 50 50. *Groynes are generally provided a) attractive b) deflective c) repelling d) all of the above Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. 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