Irrigation Engineering When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. doesnot touch the underside of the supporting structure, the structure so provided, is called Super passage Aqueduct Syphon Syphon-aqueduct Super passage Aqueduct Syphon Syphon-aqueduct ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Canals constructed for draining off water from water logged areas, are known Drains Inundation canals Valley canals Contour canals Drains Inundation canals Valley canals Contour canals 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 10 cm 20 cm 15 cm 25 cm 10 cm 20 cm 15 cm 25 cm ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering As per Lacey’s theory, the silt factor is not related to average particle size directly proportional to average par¬ticle size inversely proportional to average par¬ticle size directly proportional to square root of average particle size not related to average particle size directly proportional to average par¬ticle size inversely proportional to average par¬ticle size directly proportional to square root of average particle size ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering In a concrete canal the approximate permissible velocity of water should not exceed 2 m/sec 0.5 m/sec 1.5 m/sec 1 m/sec 2 m/sec 0.5 m/sec 1.5 m/sec 1 m/sec ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering In a syphon aqueduct Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough ANSWER DOWNLOAD EXAMIANS APP
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