Irrigation Engineering
In case of a trapezoidal notch fall

Splay downstream from the notch section is 22½°
All listed here
Splay upstream from the notch section is 45°
Top length of the piers should not be less than their thickness

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Irrigation Engineering
A counter berm is

A horizontal benching provided on the outside slope
A vertical benching provided on the inner edge of the bank
A horizontal benching provided on the inside slope
A vertical benching provided on the outer edge of the bank

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Irrigation Engineering
The flow-mass curve is graphical representation of

Discharge and percentage probability of flow being equaled or exceeded
Cumulative discharge and time
Discharge and time in chronological order
Cumulative discharge, volume and time in chronological order

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Irrigation Engineering
Lane's weighted creep theory assumes

Equal weightage to horizontal and vertical creeps
Double weightage to horizontal creep and one weightage to vertical creep
Triple weightage to vertical creep and one weightage to horizontal creep
Triple weightage to horizontal creep and one weightage to vertical creep

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