Question

A horizontal pipe 150 mm in diameter is joined by sudden enlargement to a 225 mm diameter pipe. Water is flowing through it at the rate of 0.05 m3/s.

Answer 1

Explanation:

Increasing the pipe diameter won't change the static pressure (the pressure when no water is flowing). When you open a spigot, however, the water pressure at that spigot decreases somewhat, and because a larger pipe provides a lower resistance to flow, the water pressure will decrease less with the larger pipeIncreasing the pipe diameter won't change the static pressure (the pressure when no water is flowing). When you open a spigot, however, the water pressure at that spigot decreases somewhat, and because a larger pipe provides a lower resistance to flow, the water pressure will decrease less with the larger pipe