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. An aggrading river is a) scouring river b) silting river c) both (a) and (b) of above d) none of the above 2 / 50 2. Canals taken off from ice-fed perennial rivers are known as a) permanent canal b) perennial canal c) continuous canal d) green canal 3 / 50 3. The primary cause of meandering is a) excess of total charge during flood b) minimum of total charge during flood c) average of total charge during flood d) none of the above 4 / 50 4. *Diversion headwork is constructed to a) lower water level in the river b) regulate the intake of water into the canal c) regulate silt entry into the canal d) all of the above 5 / 50 5. 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 6 / 50 6. According to Khosla's theory, the exit gradient in the absence of a downstream cutoff is a) zero b) unity c) infinity d) none of the above 7 / 50 7. As compared to a gravity dam, earthen dams a) require a sound rock foundation b) require less skilled labour c) require skilled labour d) require more cost 8 / 50 8. 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 9 / 50 9. *Total losses in the canal are a) 40% of the total discharge b) 10% of the total discharge c) 60% of the total discharge d) equal to seepage losses 10 / 50 10. *The discharge through a trapezoidal channel is maximum when a) half of the top width = sloping side b) top width = half of sloping side c) top width = sloping side d) top width = 1.5x sloping side 11 / 50 11. *The elementary profile of a dam is a) a trapezoidal b) a right-angled triangle c) rectangular d) none of the above 12 / 50 12. For syphon aqueducts, the highest flood level of the drain is a) much above the canal bed b) much below the canal trough c) at the level of the canal bed d) none of the above 13 / 50 13. *A river training work is generally required when the river is a) aggrading type b) degrading type c) meandering type d) stable type 14 / 50 14. The uplift pressure acting on a dam is controlled by a) pressure grouting in the foundation b) constructing drainage channels between the dam and its foundation c) constructing a cutoff under the upstream face d) all of the above 15 / 50 15. The water stored in the reservoir below the minimum pool level is called a) useful storage b) dead storage c) valley storage d) none of the above 16 / 50 16. A wall built along the bank of a river, parallel to the direction of flow for directing fast flow from a sluice or spillway, to prevent eroding banks of a river or canal, is called a) toe wall b) training wall c) wing wall d) divide wall 17 / 50 17. The formula V=0.55 mD0.64 is given by a) Lacey b) Kennedy c) Chazy d) none of the above 18 / 50 18. Vertical drop fall is satisfactory for a drop up to a) 0.5 m b) 1.0 m c) 1.5 m d) 2.0 m 19 / 50 19. 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 20 / 50 20. The water face of the guide banks is protected by a) one layer stone pitching b) two-layer stone pitching c) three-layer stone pitching d) four-layer stone pitching 21 / 50 21. In an earthen dam, seepage through the embankment is controlled by a) drainage gallery b) drain trenches c) relief walls d) horizontal blanket 22 / 50 22. *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 23 / 50 23. Cross walls provided across the stream, built under the floor of a hydraulic structure at the upstream and downstream ends of the pavement to avoid scour and protect floors, abutments etc., and which is carried up to another, is called a) back walls b) curtain wall c) flarred wall d) parapet wall 24 / 50 24. The other name for an unconfined aquifer is a) temporary aquifer b) permanent aquifer c) free aquifer d) perched aquifer 25 / 50 25. For any crop, the base period is measured in a) days b) weeks c) months d) years 26 / 50 26. *Drop structures in the canal are provided for a) providing a bridge b) energy dissipation c) maintaining ground slope d) creating high velocity 27 / 50 27. *Marginal bund/leeve is an earthen dam constructed roughly a) parallel to the river b) perpendicular to the river c) acute angle with the river d) obtuse angle with the river 28 / 50 28. For a proportional outlet, the flexibility is a) zero b) one c) between zero and one d) more than one 29 / 50 29. Lands or climate that lack sufficient water for agriculture without artificial irrigation are called a) dry zone b) arid zone c) semi-arid zone d) hybrid arid zone 30 / 50 30. In a canal syphon, flow is a) pipe flow b) under negative pressure c) under atmospheric pressure d) none of the above 31 / 50 31. A canal used to drain off water from waterlogged areas is a) ditch canal b) drain canal c) perennial canal d) none of the above 32 / 50 32. The proportion of silt per unit volume by weight in water is called a) silt density b) silt charge c) silt factor d) none of the above 33 / 50 33. A weir, which has a tail water level higher than the weir crest, by which the discharge is affected, is called a) negative head weir b) submerged weir c) flooded weir d) none of the above 34 / 50 34. Optimum depth of kor watering for a rice crop is a) 13.5 cm b) 16.5 cm c) 19 cm d) 21 cm 35 / 50 35. 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 36 / 50 36. *To avoid an interruption in the field of a siphon, the air vessel is provided a) at the summit b) at the inlet c) at the outlet d) none of the above 37 / 50 37. River on alluvial plains is usually a) aggrading type b) degrading type c) meandering type d) stable type 38 / 50 38. *When a canal is carried over a natural drainage, the structure provided is known as a) siphon b) aqueduct c) super passage d) syphon aqueduct 39 / 50 39. Disposal of extra excavated earth of canals is utilized to provide a spoil bank on a) the left side b) the right side c) none of the above d) all of the above 40 / 50 40. The fall using a parabolic glacis for energy dissipation is a) vertical drop fall b) glacis fall c) inglis fall d) montague fall 41 / 50 41. *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 42 / 50 42. *Single bank canal is the other name for a) ridge canal b) contour canal c) side slope canal d) none of the above 43 / 50 43. *Bed bars in a canal are provided a) to raise the supply level b) to measure the discharge c) to watch the general behavior of the canal d) to control the silting 44 / 50 44. *Available moisture may be defined as the a) moisture content at permanent wilting point b) difference in water content of the soil between field capacity and permanent wilting point c) maximum moisture-holding capacity d) all of the above 45 / 50 45. *Meandering of the river increases the length of the river while cut-off a) increase in the width of the river b) decrease the length of the river c) increase the length of the river d) decrease the width of the river 46 / 50 46. *The maximum failure of earthen dams occurs due to a) erosion due to the velocity of water b) slipping due to steeper slopes c) over topping due to insufficient height d) leakage due to cavities 47 / 50 47. In a reservoir, which type of storage is normally used? a) useful storage b) surcharge storage c) bank storage d) dead storage 48 / 50 48. *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 49 / 50 49. 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 50 / 50 50. In a chute spillway, the flow is generally: a) laminar b) turbulent c) critical d) supercritical 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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