Irrigation Engineering
A river bend characterized by silting

scouring on concave side and silting on convex side
scouring on convex side and on concave side
silting on convex side
scouring on concave side

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Irrigation Engineering
In a syphon aqueduct

Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough
Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough

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Irrigation Engineering
Bligh's theory of seepage assumes

Equal weightage to the horizontal and vertical creep
Loss of head follows the sine curve
Less weightage to horizontal creep than vertical creep
More weightage to horizontal creep than vertical creep

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