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IRRIGATION ENGINEERING

Irrigation Engineering
If D₁ and D₂ are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is

(D₂ - D₁)3/2D₁D₂
(D₂ - D₁)3/D₁D₂
(D₂ - D₁)3/4D₁D₂
(D₂ - D₁)3/3D₁D₂

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Irrigation Engineering
For the design of major hydraulic structures on the canals, the method generally preferred to, is based on

Electrical analogy method
Bligh's theory
The relaxation method
Khosla's method of independent variables

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Irrigation Engineering
The main function of a divide wall is to

prevent river floods from entering the canal
separate the undersluices from weir proper
provide smooth flow at sufficiently low velocity
control the silt entry in the canal

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Irrigation Engineering
Disposal of extra excavated earth of canals, is utilized to provide a spoil bank on

Right side
All listed here
Left side
Both sides

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Irrigation Engineering
The duty is largest

at the head of water course
on the field
same at all places
at the head of a main canal

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