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Irrigation Water Resources Engineering - Interview Questions and Answers

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86. If there are two canals taking off from each flank of a river, then there will be
A. one divide wall and one undersluice
B. one divide wall and two undersluices
C. two divide walls and one undersluice
D. two divide walls and two undersluices
Explanation:
87. Seepage through foundation in an earthen dam is controlled by providing
A. rock toe
B. horizontal blanket
C. impervious cut off
D. chimney drain
Explanation:
88. The maximum permissible eccentricity for no tension at the base of a gravity dam is
A. B/2
B. B/3
C. B/4
D. B/6
Explanation:
89. The main function of a divide wall is to
A. control the silt entry in the canal
B. prevent river floods from entering the canal
C. separate the undersluices from weir proper
D. provide smooth flow at sufficiently low velocity
Explanation:
90. For wave action in dams, the maximum height of freeboard is generally taken to be equal to
A. 0.5 hw
B. 0.75 hw
C. 1.25 hw
D. 1.50 hw
Explanation: