Irrigation Engineering Online Test – Paper 2

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

2. The discharge coefficient of an ogee spillway is:

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

4. *Fall is provided in the canal of

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

6. According to Khosla's theory, the undermining of the floor starts from the

7. *Critical depth is

8. *The elementary profile of a dam is

9. If the top width is provided for the roadway, the resultant force for full reservoir condition will

10. *In irrigation canals, the reasons for water losses are

11. *The crops require maximum water during

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

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

14. As the salinity of water increases, electrical conductivity

15. The average delta of a rice crop is nearly

16. *The dead storage in a reservoir is provided to

17. Area velocity method is used to measure.

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

19. A protection at the downstream end of a weir or fall, consisting of blocks of concrete or masonry, is called

20. The overflow of a spillway in the shape of a double or s-curve, which is convex at the top and concave at the bottom, is called

21. The factor affecting the pattern of sediment deposition in a reservoir is

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

23. *The maximum discharge through a circular channel takes place when the depth of flow is equal to

24. *Economic height of a dam is

25. An excavation in the base of a dam or other structures filled with relatively impervious material to reduce percolation is called

26. The crop that improves the nitrogen content of the soil is

27. The most suitable material for the central impervious core of a zoned embankment type dam is

28. *When a canal is carried over a natural drainage, the structure provided is known as

29. *Diversion headwork is constructed to

30. Obstruction placed on the downstream floor of a fall to dissipate the velocity of the flowing water and maintain the standing wave on the glacis is known as