When the tail-water depths in the river downstream of a spillway are q – McqOptions

MCQOPTIONS

1.	When the tail-water depths in the river downstream of a spillway are quite low such that the tail-water curve at all discharges lies below the post jump depth curve, then the energy dissipation can be affected best by ___________________
A.	a roller bucket
B.	a ski-jump bucket
C.	either roller or ski-jump bucket
D.	a sloping apron
Answer» C. either roller or ski-jump bucket

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