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

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

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Irrigation Engineering
For designing the venturi head,

All listed here
Minimum throat width should not be less than 60 cm
Width of the throat should not be less than one-third of the bed width of main canal
Length of the throat should be 2.5 times the depth measured to F.S.L. in the main canal

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Irrigation Engineering
Which one of the following statements is correct?

The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream
The canal system runs on ridges, gets divided into smaller channels and spreads its water on the land
All listed here
The canal system and the drainage system are complementary

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