An incompressible fluid flows through a pipe. The radius of the pipe at point A is twice as large as the radius at point B. The pressure of the fluid at point B is
A) greater than the pressure at point A.
B) less than the pressure at point A.
C) equal to the pressure at point A.
D) not determinable from the information given.

Question

Quizplus · Accepted Answer

According to the principle of conservation of mass and Bernoulli's equation, the velocity of the fluid increases as it moves from a wider section (point A) to a narrower section (point B). An increase in velocity results in a decrease in pressure at point B compared to point A.

An Incompressible Fluid Flows Through a Pipe