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Civil Engineering - Irrigation

Exercise : Irrigation - Section 3
41.
According to Lacey, in regime conditions
silt is kept in suspension by vertical components of eddies
entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter
both (a) and (b)
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Process of meandering is due to
sediment load of streams
discharge and hydraulic properties of streams
relative erodibility of the bed and banks
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor down stream of the crestwall, is given by the equation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
For cereal crops the most commonly adopted method of irrigation, is
free flowing method
check method
furrow method
sprinkling method.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
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
an aqueduct
a syphon aqueduct
a super passage
a syphon.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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