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Irrigation Engineering

Irrigation Engineering
The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept

2.20 m
0.20 m
3.20 m
1.20 m

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Irrigation Engineering
Garnett's diagrams are used for graphical solution of design equations of a canal by

Gibb's theory
Lindlay theory
Lacey's theory
Kennedy's theory

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Irrigation Engineering
The ratio of the rate of change of discharge of an outlet and parent channel, is known as

Flexibility
Sensitivity
Modular limit
Efficiency

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Irrigation Engineering
In a barrage, the crest level is kept

High with no gates
Low with no gates
High with large gates
Low with large gates

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

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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

m1/2
m2/3
m1/3
m3

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