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Irrigation Engineering

Irrigation Engineering
A runoff river plant is

None of these
a high head scheme
a low head scheme
a medium head scheme

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Irrigation Engineering
The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than

10 cm
30 cm
20 cm
40 cm

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Irrigation Engineering
Finally formed berms in canals are provided for

Protection of banks erosion by the waves
Control of seepage losses
Strengthening of banks
All of these

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Irrigation Engineering
If average particle size of the silt in millimeters is m, the Lacey's silt factor f is proportional to

m2/3
m1/3
m1/2
m3

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Irrigation Engineering
A minimum of 90 cm free board is provided if the discharge in the canal is between

30 to 33 cumecs
Over 100 cumecs
30 to 60 cumecs
Over 60 cumecs

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Irrigation Engineering
Lacey's equation for calculating flood discharge in rivers, is

V = 10.8 R2/3 S1/2
V = 10.8 R1/3 S2/3
V = 10.8 R2/3 S1/3
V = 10.8 R1/2 S1/2

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