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Irrigation Engineering

Irrigation Engineering
If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by

k= VTd
T = k/d
T = kd
T= Vkd

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Irrigation Engineering
When a canal and a drainage approach each other at the same level, the structure so provided, is

A syphon
An aqueduct
Inlet and outlet
A level crossing

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Irrigation Engineering
The width of a meander belt is the transverse distance between

None of these
Two banks of meandering river
Apex point and the crossing
Apex point of one curve and apex point of the reserve curve

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Irrigation Engineering
According to Kennedy, the critical velocity (V₀) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).

V₀ = 0.55 mD0.54
V₀ = 0.55 mD0.64
V₀ = 0.84 mD0.54
V₀ = 0.84 mD0.64

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Irrigation Engineering
For the stability of a structure against seepage pressure according to Khosla's creep theory, the critical gradient is

0.5
0.25
Zero
1

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Irrigation Engineering
The maximum average depth due to one day storm over an area of 100 km2 is 100 mm. Depth-Area-Duration (DAD) curves indicate that for the same area of 100 km2 the maximum average depth for a 3 hour storm will be

more than 100 mm
None of these
100 mm
less than 100 mm

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