Question

Water flows through a horizontal pipe. At one point, the velocity is \(2\ \text{m/s}\) and the pressure is \(2\ \text{m}\) of water column. What is the pressure at another point where the velocity is \(3\ \text{m/s}\)?
(Density of water \(=10^3\ \text{kg/m}^3\))

• A. \(1.75\ \text{m}\) of water
• B. \(1.2\ \text{m}\) of water
• C. \(1\ \text{m}\) of water
• D. \(1.5\ \text{m}\) of water

Hint:

For horizontal fluid flow problems, Bernoulli’s equation simplifies to: \[ P+\frac12\rho v^2=\text{constant} \] Thus, wherever the fluid velocity increases, the pressure decreases.

Answer 1

The Correct Option is D