# Irrigation Engineering Online Test – Paper 3

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Created by Vikash chaudhary

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• Total Questions: 50
• Time Allotted: 50 minutes
• Passing Score: 70%
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1. *The river training work is concentrated with

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2. *Surface float method is used for the velocity measurement while the current meter is used for the measurement of

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3. Optimum depth of kor watering for wheat in the plains or terai is

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4. According to Kennedy's theory, the silt supporting eddies are generated due to

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5. The kor depth for rice is 19 cm, and the kor period is 14 days. The outlet factor for this will be

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6. *The major resisting force in a gravity dam is

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7. In a non-gravity weir, the uplift pressure is resisted by

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8. The ratio of the total volume of water delivered to a crop to the area on which it has been spread is called

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9. *Available moisture may be defined as the

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10. Which of the following crops are in Rabi groups?

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11. Darcy's formula is given by

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12. On a suitable foundation, the earthen dam can be constructed up to a height of

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13. *The hydraulic jump is the example of

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14. Into how many components is the diversion head work divided?

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15. A canal, constructed by the side of and generally parallel to the parent canal with a different bed slope is called

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16. The most suitable location of a canal headwork is

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17. The uplift pressure on the face of a drainage gallery in a dam is equal to

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18. The time (generally in days) for which a crop occupies a field to attain its maturity is known as

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19. In a gravity canal, F.S.L is always

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20. Bed bars provided in a canal are made of

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21. The fall using a parabolic glacis for energy dissipation is

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22. *Attracting type spurs

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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

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24. In irrigation canals, drops are needed if

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25. *Separation of flow occurs when

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26. The canal head regulator is provided at the head of the offtaking canal to

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27. Vertical drop fall is satisfactory for a drop up to

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28. *The maximum failure of earthen dams occurs due to

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29. A land is called waterlogged

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30. In an earthen dam, seepage through the foundation is controlled by providing

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31. Canals taking off from a river with or without a head regulator are called

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32. Vertical acceleration due to an earthquake results in

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33. *After entering the canal, sediments are removed by the

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34. *The main function of a diversion head works of a canal from a river is to

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35. Boulder lining is useful where

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36. Waterlogging may result from

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37. A river bend in alluvial soil is characterized by

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38. Longitudinal shallow retaining walls built near ground level for supporting the pitching on the face of earthen embankment is called

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39. The fall is designed and constructed to satisfy the condition that

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40. *Mean velocity of the canal should never be

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41. The type of irrigation during a low quantity of water

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42. For an earthen dam, least suited spillway is:

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43. *The width and length of meander vary approximately with

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44. A crop that takes more than 4 months to mature is called

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45. A repelling groyne is aligned

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46. The water face of the guide banks is protected by

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47. For the upstream face of an earthen dam, the most adverse condition for the stability of slope is

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48. *To avoid an interruption in the field of a siphon, the air vessel is provided

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49. If the value of sodium-absorption ratio lies between 10 to 18, it is called

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50. The consumptive use of water for a crop

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