Irrigation Engineering
The flow-mass curve is graphical representation of

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

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Irrigation Engineering
The intensity of irrigation means

Percentage of gross commanded area to be irrigated annually
Percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually
Total depth of water supplied by the number of waterings
Percentage of culturable commanded area to be irrigated annually

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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
Canal passes over the drainage and H.F.L. of the drainage is below 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

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Irrigation Engineering
A deep well

is always deeper than a shallow well
has more discharge than a shallow well
both (A) and (B)
is weaker structurally than a shallow well

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