Question

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

(a) saddle weir

(b) flank weir

(c) waste weir

(d) temporary weir

I got this question at a job interview.

This is a very interesting question from Chute Spillway topic in section Spillways, Energy Dissipators and Spillway Gates of Irrigation Engineering

Answer 1

Right option is (b) flank weir

For explanation I would say: Saddle weir is the one when the spillway is constructed in a natural saddle in a bank of the river separated from the main dam by a high ridge. Flank weir is the one when the spillway is constructed in continuation to the dam at one end.