SSC JE Civil Preliminary Exam in January 2018 | Practice test Day – 61

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1. The uplift pressure on the roof of an inverted syphon, is maximum when
2. Pick up the correct sequence of the part of a canal system from the following
3. The most suitable section of a lined canal, is
4. A land is said to be water-logged if its soil pores within
5. The field capacity of a soil depends upon
6. According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is
7. The ratio of the rate of change of discharge of an outlet and parent channel, is known as
8. Garnett's diagrams are used for graphical solution of design equations of a canal by
9. While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3
10. For cereal crops the most commonly adopted method of irrigation, is
11. An outlet is said to be proportional if its flexibility,
12. For standing crops in undulating sandy fields, the best method of irrigation, is
13. The water face of the guide banks, is protected by
14. Lacey's equation for calculating flood discharge in rivers, is
15. The ratio of the head recovered to the head put in, is known as
16. The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as
17. In a syphon aqueduct
18. The level of the fioor of a syphon aqueduct can be obtained
19. In a concrete canal the approximate permissible velocity of water should not exceed
20. The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than
21. If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle θ with horizontal, the hydraulic mean depth is
22. If water table is comparatively high, the irrigation canal becomes useless, due to
23. The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
24. In rigid module, the discharge
25. Lane's weighted creep theory assumes
26. A current meter measures the velocity of flow, if it is held
27. A counter berm is
28. To hold hydraulic jumps, baffle walls are provided in
29. If average particle size of the silt in millimetres is m, the Lacey's silt factor f is proportional to
30. Effective precipitation for a crop may be defined as
31. For diversion of flood water of rivers, the type of canal constructed, is
32. Cross regulators in main canals are provided

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