A siphon spillway in a concrete gravity dam is in the shape of ________________ Options: A . &nbspU-shape B . &nbspInverted U-shape C . &nbspHorizontal bend through the abutment D . &nbspAny straight line

A siphon spillway in a concrete gravity dam is in the shape of _______________

Question

A siphon spillway in a concrete gravity dam is in the shape of ________________

Options:

A . U-shape

B . Inverted U-shape

C . Horizontal bend through the abutment

D . Any straight line

Answer: Option B
Answer: (b).Inverted U-shape

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Question 1. The energy dissipation at the toe of the spillway is affected basically by the use of hydraulic jump in ________________....affected basically by the use of hydraulic jump in _______________________

Question 2. When the tail-water depths in the river downstream of a spillway are quite low such that the tail-water curve at all dis....then the energy dissipation can be affected best by ___________________

Question 3. The most ideal condition for energy dissipation in the design of spillways is the one when the tail-water rating curve c....curve coincides with the jump rating curve at all discharge.

Question 4. The device which does not help in energy dissipation at the bottom of a hydraulic structure over which water spills is _....of a hydraulic structure over which water spills is ________________

Question 5. A sloping apron is provided partly above the river bed and partly below the river bed in case of _______________________....and partly below the river bed in case of ____________________________

Question 6. A troublesome and oscillating hydraulic jump is normally met in cases of _____________....

Question 7. When the TWC lies below the JHC at all discharges, the problem can be solved by which of the following provisions? i. C....sloping apron partly above and partly below the river bed

Question 8. A very steady and stable hydraulic jump is usually formed in the flows involving the approaching Froude number in the ra....involving the approaching Froude number in the range of _____________________

Question 9. Standard USBR stilling basin-II is useful for energy dissipation at the bottom of the overflow structure, if the approac....the overflow structure, if the approaching Froude number is ________________

Question 10. An ogee spillway of a concrete gravity dam having FRL of 328 m and MWL of 340 m is provided with vertical gates between ....to the actual reservoir level of 331.0 m will be_____________

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