Question

Hydraulic jump forms in a horizontal rectangular channel carrying a unit discharge of $1.019m^3/sec/m$ at a depth of $10.19mm.$ This jump is classified as

• A. Steady jump
• B. Oscillating jump
• C. Weak jump
• D. Strong jump

Answer 1

The correct option is D Strong jump

$\begin{array}{cc}{F}_1^2& =\frac{q^2}{g{y}^3}\\ \therefore F_1^2& =\frac{(1.019{)}^2}{9.81\times (0.1019{)}^3}\\ F_1& =10\\ \therefore F_1& =F_1>9\left[Strongjump\right]\end{array}$