1 In an open-channel flow, the specific energy is defined as (a) the total energy per unit (c) the total energy per unit specific volume weight (b) the total energy per unit mass (d) the total energy...

1 In an open-channel flow, the specific energy is defined as

(a) the total energy per unit (c) the total energy per unit specific volume weight

(b) the total energy per unit mass (d) the total energy with respect to the channel bottom as reference

2 Hydraulic jump occurs when the

(a) channel bed is smooth (c) flow changes from supercritical to  subcritical

(b) flow changes from subcritical to (d) slope of bed changes from steep  subcritical to mild