Irrigation Engineering
The flow-mass curve is graphical representation of

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

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Irrigation Engineering
As per Lacey’s theory, the silt factor is

inversely proportional to average par¬ticle size
directly proportional to average par¬ticle size
directly proportional to square root of average particle size
not related to average particle size

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