Irrigation Engineering
The uplift pressure on a dam can be controlled by i) constructing cutoff under upstream face ii) constructing drainage channels bet-ween the dam and its foundation iii) by pressure grouting in foundation The corret answer is

both (i) and (ii)
only (i)
both (i) and (iii)
(i), (ii) and (iii)

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Irrigation Engineering
A divide wall is provided

Parallel to the axis of weir and upstream of it
Parallel to the axis of weir and downstream of it
At an inclination to the axis of weir
At right angle to the axis of weir

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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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