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GATE 2025 Hydrology and irrigation Quiz 10
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Question 1
The net uplift force on a dam if the height of water in the reservoir is 45 m. (Assume the width of the dam to be 21m)
Question 2
A concrete dam having width 14m and height 17.45m is constructed on a river to store water. If the compressive strength and the specific gravity of concrete is 2896 kN/m2 and 2.24 respectively, then what will be the critical height of the dam? Also classify the dam based on its height.
Question 3
A channel designed by Lacey’s theory has a mean velocity of 1m/s. If silt factor is unity, then hydraulic mean radius will be
Question 4
A wide unlined channel carrying silt free water has a depth of 2.5 m. The maximum slope that can be given to the channel is 1 in 10,000. The maximum tractive stress (in N/m2) permissible on the bed to prevent scour
Question 5
A weir on a permeable foundation with downstream sheet pile is shown in the figure below. The Exit gradient as per Khosla’s method is
Question 6
Following data were obtained from the stability analysis of a concrete gravity dam.
Total overturning moment about toe = 3 × 105 ton-m
Total resisting moment about toe = 4 × 105 ton-m
Total downward weight of the dam = 6000 tonnes
Total uplift force = 1000 tonnes
Base width of the dam = 50 m
The pressure acting at the toe of the dam would be
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Nov 20ESE & GATE CE
