The quantity y appearing in Bernoulli's equation MUST be measured:
A)upward from the center of the Earth
B)upward from the surface of the Earth
C)upward from the lowest point in the flow
D)downward from the highest point in the flow
E)upward from any convenient level

Question

Quizplus · Accepted Answer

Bernoulli's equation relates the pressure, velocity, and elevation head of a fluid flow. The elevation head (y) can be measured from any convenient reference level because it's the difference in elevation that matters, not the absolute elevation. This makes calculations easier without affecting the outcome, as Bernoulli's equation deals with differences in energy per unit weight of fluid.

The Quantity Y Appearing in Bernoulli's Equation MUST Be Measured