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 = 0.44 √(H + d) B = 0.55 √(H + d) B = 0.33 √(H + d) B = 0.22 √(H + d) B = 0.44 √(H + d) B = 0.55 √(H + d) B = 0.33 √(H + d) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Cross regulators in main canals are provided To increase water head upstream when a main canal is running with low supplies None of these To regulate water supply in the distributaries To overflow excessive flow water To increase water head upstream when a main canal is running with low supplies None of these To regulate water supply in the distributaries To overflow excessive flow water ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Presence of tail water in a gravity dami) increases the principal stressii) decreases the principal stressiii) increases the shear stressiv) decreases the shear stressThe correct answer is (ii) and (iv) (ii) and (iii) (i) and (iii) (i)and(iv) (ii) and (iv) (ii) and (iii) (i) and (iii) (i)and(iv) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The net speed under which the turbine reaches its peak efficiency is called rated speed operating speed gross speed design speed rated speed operating speed gross speed design speed ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The maximum rainfall depth of 300 mm in 24 hours has a return period of 100 years. The probability of 24 hours rainfall equal to or greater than 300 mm occurring at least once in 10 years is given by (0.99)10 (0.9)00 l-(0.9)100 1 – (0.99)10 (0.99)10 (0.9)00 l-(0.9)100 1 – (0.99)10 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The rainfall on five successive days were measured as 100 mm, 80 mm, 60 mm, 40 mm and 20 mm respectively. If the infiltration index or the storm loss rate for the catchment area is earlier estimated as 50 mm/day, the total surface run off will be 140 mm 90 mm 50 mm 60 mm 140 mm 90 mm 50 mm 60 mm ANSWER DOWNLOAD EXAMIANS APP
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