Q. What is the value of abutment contraction coefficient for square abutment with headwall perpendicular to the direction of flow?

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Q. What is the assumption that is taken during the entire design of an overflow spillway?

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Q. The greater is the divergence from the streamline flow, greater is the contraction coefficient.

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Q. Calculate the effective length of the spillway which consists of 6 spans having a clear width of 10 m each. The thickness of each pier may be taken as 2.5 m and the total design head on the crest including velocity head is 16.3 m. Assuming 90° cut water nose piers and rounded abutments.

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Q. Which of the following is the simplest type of spillway which can be provided independently and at low costs?

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Q. If the spillway is constructed in continuation to the dam at one end, it may be called as ________

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Q. The spillway which can be adopted with ease on gravity as well as earthen dams is _________________

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Q. The famous Bhakra dam of India is provided with ________________

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Q. The surplus reservoir water after spilling over the crest of the spillway flows on the chute is __________________

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Q. Whenever the slope of chute changes from steeper to milder ____________________ curve shall be provided.

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Q. The side slope of approach channel of chute spillway is ___________________

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Q. The spillway which may sometimes be called as a waste weir is ______________________

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Q. The portion of a chute spillway which is known as its control structure is ________________

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Q. The type of spillway which is provided on narrow valleys where no side flanks are available is ____________________

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Q. Which of the following curve is provided when the slope of the chute changes from milder to steeper?

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Q. Calculate the freeboard for the top levels of the side walls if the mean velocity of water in the chute reach is 3.5 m/s and the mean depth of water in the chute reach under consideration is 4.7 m.

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Q. The minimum slope of the chute is governed by the condition that _____________

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Q. What is the approximate percentage of light reinforcement that is provided in the top of the reinforced concrete slabs at the base?

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Q. A shaft spillway is located _______________________

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Q. The siphons installed within a gravity dam to spill the surplus reservoir water are known as ______________________

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