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Irrigation Engineering

Irrigation Engineering
The depth of rice root zone, is

80 cm
90 cm
50 cm
60 cm

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Irrigation Engineering
The shape of recession limb of a hydrograph depends upon

Storm characteristics only
Both (A) and (B)
Basin characteristics only
None of these

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

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Irrigation Engineering
For standing crops in undulating sandy fields, the best method of irrigation, is

Free flooding
Sprinkler irrigation
Furrow method
Check method

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Irrigation Engineering
The ratio of the average load to the installed capacity of the plant whose reserve capacity is zero will be equal to

Load factor
Utilization factor
Both load and plant factor
Plant factor

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Irrigation Engineering
If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by

B = 0.22 √(H + d)
B = 0.55 √(H + d)
B = 0.44 √(H + d)
B = 0.33 √(H + d)

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