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Irrigation Water Resources Engineering - Interview Questions and Answers

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81. The duty is largest
A. at the head of water course
B. on the field
C. at the head of a main canal
D. same at all places
Explanation:
82. The uplift pressure on the face of a drainage gallery in a dam is taken as
A. hydrostatic pressure at toe
B. average of hydrostatic pressure at toe and heel
C. two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel
D. none of the above
Explanation:
83. 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
A. 50 mm
B. 60 mm
C. 90 mm
D. 140 mm
Explanation:
84. When the upstream face of a gravity dam is vertical, then the intensity of water pressure at the water surface and at the base respectively will be
A. 0 and wH212
B. wH2/2and wH2/3
C. wH and 0
D. OandwII
Explanation:
85. Silt excluders are constructed on the
A. river bed upstream of head regulator
B. river bed downstream of head regulator
C. canal bed upstream of head regulator
D. canal bed downstream of head regulator
Explanation:
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