Irrigation Engineering If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is Q = 1.71 BD Q = 1.71 BD1/2 Q = 1.71 BD3/2 Q = 1/71 BD2/3 Q = 1.71 BD Q = 1.71 BD1/2 Q = 1.71 BD3/2 Q = 1/71 BD2/3 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the area of its cross-section, is R (θ + cot θ) R (θ + tan θ) R2 (θ + tan θ) R2 (θ + cot θ) R (θ + cot θ) R (θ + tan θ) R2 (θ + tan θ) R2 (θ + cot θ) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after 250 years 200 years 50 years 150 years 250 years 200 years 50 years 150 years ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Bligh's theory of seepage assumes Equal weightage to the horizontal and vertical creep More weightage to horizontal creep than vertical creep Loss of head follows the sine curve Less weightage to horizontal creep than vertical creep Equal weightage to the horizontal and vertical creep More weightage to horizontal creep than vertical creep Loss of head follows the sine curve Less weightage to horizontal creep than vertical creep ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is 25 cm 15 cm 20 cm 10 cm 25 cm 15 cm 20 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of same duration only same and longer duration same and shorter duration any duration same duration only same and longer duration same and shorter duration any duration ANSWER DOWNLOAD EXAMIANS APP
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