Whenever the slope of chute changes from steeper to milder ____________________ curve shall be provided.
(a) a concave vertical curve
(b) a convex vertical curve
(c) a hyperbolic curve
(d) a parabolic curve
This question was posed to me in an online interview.
This key question is from Chute Spillway in portion Spillways, Energy Dissipators and Spillway Gates of Irrigation Engineering