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 relation between duty (D) in hectares/cumec depth of water in meters and base period (B) in days is given by a) Δ = 8.64 B / D b) Δ = 8.64 D / B c) Δ = 8.64 B d) none of the above 2 / 50 2. The capacity of a reservoir is 50 million cubic meters, and dead storage is 12 million cubic meters. If the average volume of sediment deposition is 0.1 million cubic meters per year, then the usefulness of the reservoir will start reducing after a) 40 years b) 100 years c) 120 years d) 250 years 3 / 50 3. The angle between the head regulator and the water, for smooth entry of water into a canal, is generally kept at a) 60° b) 90° c) 100° d) 110° 4 / 50 4. The water utilized by plants is available in soils mainly in the form of a) capillary water b) gravity water c) hygroscopic water d) pore water 5 / 50 5. If the RLs of canal bed level and high flood level of drainage are 210.0 m and 212.0 m respectively, then the cross drainage work will be a) aqueduct b) super passage c) syphon aqueduct d) none of the above 6 / 50 6. *The structure provided where natural drainage and canal meet at the same level is a) aqueduct b) siphon c) super passage d) level crossing 7 / 50 7. In rice, the depth of the root zone is generally, a) 30 cm b) 60 cm c) 90 cm d) 120 cm 8 / 50 8. Horizontal acceleration due to an earthquake results in a) hydrodynamic pressure b) inertia force into the body of the dam c) both (a) and (b) of above d) none of the above 9 / 50 9. *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 10 / 50 10. In a gravity dam, the total force due to wave pressure acts at a height of (Where hw is the height of wave) a) 0.375 hw above the still water level b) 0.5 hw above the still water level c) 0.66 hw above the still water level d) 0.92 hw above the still water level 11 / 50 11. *When the water table is within the root zone depth and is detrimental to plant life, the land is said to be a) over nourished b) super-saturated c) waterlogged d) undernourished 12 / 50 12. A protection at the downstream end of a weir or fall, consisting of blocks of concrete or masonry, is called a) scour b) baffles c) talus d) flank wall 13 / 50 13. *A groyne a) widens a river channel to improve its depth b) deteriorates the river banks c) silts up the area in the vicinity by creating a slack flow d) none of the above 14 / 50 14. The most suitable material for the central impervious core of a zoned embankment type dam is a) coarse sand b) compacted soil c) clay d) clay mixed with fine sand 15 / 50 15. The thickness of concrete lining, for discharge up to 200 cumecs, varies from a) 5 to 10 cm b) 10 to 15 cm c) 15 to 20 cm d) 20 to 30 cm 16 / 50 16. *A divide wall is provided to a) control the silt entering the canal b) separate the under sluices from the weir proper c) prevent river flood entering the canal d) all of the above 17 / 50 17. A minimum of 90 cm freeboard is provided if the discharge in the canal is a) between 10 and 30 cumecs b) between 30 and 60 cumecs c) over 60 cumecs d) over 100 cumecs 18 / 50 18. A river bend in alluvial soil is characterized by a) silting on the convex side b) scouring on the concave side c) both (a) and (b) of above d) silting on the concave side and scouring on the convex side 19 / 50 19. The most suitable location of a canal headwork is a) boulders stage of the river b) delta stage of the river c) rock stage of the river d) trough stage of the river 20 / 50 20. *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 21 / 50 21. *Main purpose of mean water training for rivers is a) flood control b) to keep the channel in good shape by sufficient disposal of suspended and bed load c) to provide sufficient depth of water in navigable channels during low water position d) all of the above 22 / 50 22. 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 23 / 50 23. *The elementary profile of a dam is a) a trapezoidal b) a right-angled triangle c) rectangular d) none of the above 24 / 50 24. Bed bars provided in a canal are made of a) cement concrete b) brick masonry c) iron rod d) both (a) and (b) above 25 / 50 25. Into how many components is the diversion head work divided? a) 8 b) 6 c) 7 d) 5 26 / 50 26. 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 27 / 50 27. Roughness of the bed and sides of a channel can be reduced by a) removing sandbars b) removing fallen trees and other snags c) preventing cropping on the river bed near banks d) all of the above 28 / 50 28. *Hydrograph is the graphical representation of a) river runoff and time b) surface runoff and time c) groundwater and time d) rainfall and time 29 / 50 29. *Weir method is used to measure a) area b) velocity c) discharge d) none of the above 30 / 50 30. A divide wall is provided a) parallel to the axis of weir and upstream of it b) perpendicular to the axis of weir c) at right angle to the axis of weir d) none of the above 31 / 50 31. *Meandering of rivers is caused by a) excessive discharge during the floods, when turbulence is developed b) increase in width c) heavy deposition d) all of the above 32 / 50 32. The uplift pressure on the face of a drainage gallery in a dam is equal to a) hydrostatic pressure at toe b) hydrostatic pressure at heel c) two-thirds of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel d) none of the above 33 / 50 33. In a syphon spillway, the effective head is measured a) as the difference in levels of water upstream and downstream of the spillway b) as the difference in levels between the headwater and the average ground level c) as the height of the crest above ground d) none of the above 34 / 50 34. *The hydraulic jump is known as a) standing wave b) positive surge c) negative wave d) none of the above 35 / 50 35. Hydrodynamic pressure due to an earthquake acts at a height of a) 3H / 4π above the base b) 4H / 3π above the base c) 4H / 3π below the water surface d) 3H / 4π below the water surface 36 / 50 36. Aggrading river is characterized by a) losing its bed b) building up its beds c) meandering d) low discharge, low gradient 37 / 50 37. *The total depth of water required by a crop during the entire period the crop is in the field is known as a) Crop ratio b) Crop intensity c) Delta d) Duty 38 / 50 38. Darcy's formula is given by a) the rate of flow is proportional to the hydraulic gradient b) the rate of flow is proportional to the exit gradient c) the rate of discharge is proportional to the hydraulic gradient d) the rate of discharge is proportional to the exit gradient 39 / 50 39. An aggrading river is a) scouring river b) silting river c) both (a) and (b) of above d) none of the above 40 / 50 40. The weir is generally aligned at a right angle to the direction of the main river flow because a) it gives better discharge capacity b) less length of weir is required c) it is economical d) all of the above 41 / 50 41. Water found on the surface of the soil, which is not capable of movement either by gravity or capillary and can only be driven off by heat, is called a) water vapour b) moisture c) hygroscopic water d) none of the above 42 / 50 42. If there are two canals taking off from each bank of a river, then there will be a) one divide wall and one under sluice b) one divide wall and two under sluice c) two divide walls and one under sluice d) two divide walls and two under sluice 43 / 50 43. The shape of the lined canal recommended by ISI is a) triangular b) rectangular c) parabolic d) trapezoidal 44 / 50 44. 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 45 / 50 45. *A silt regulator located at the head of a channel is called a) silt ejector b) silt excluder c) silt sweeper d) silt washer 46 / 50 46. *The measure to remove waterlogging of land is a) to reduce percolation from canals and watercourses b) to increase outflow from the groundwater reservoir c) both (a) and (b) d) none of the above 47 / 50 47. For a flood control reservoir, the effective storage is equal to a) useful storage - valley storage + surcharge storage b) useful storage + valley storage + surcharge storage c) useful storage + surcharge storage d) useful storage - valley storage 48 / 50 48. 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 49 / 50 49. The disadvantage of water logging of fields is a) plant diseases b) growth of water weeds c) rise of salt in the surface layer d) all of the above 50 / 50 50. *Mean velocity of the canal should never be a) less than the critical velocity b) more than the critical velocity c) equal to the critical velocity d) none 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. Send feedback Buy Irrigation Engineering MCQ PDF for Offline Study Share the above MCQs:Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on X (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)
