For incompressible steady flow of an ideal fluid through a horizontal pipe with narrowing cross-section, Bernoulli's principle states that static pressure:

(A) Decreases as velocity increases

(B) Increases as velocity increases

(C) Remains constant throughout

(D) Drops to absolute zero at any constriction

Answer Key:

A

### Solution: p + 0.5 * rho * V^2 = constant. As flow accelerates in the constriction, dynamic pressure increases and static pressure decreases. Correct: A.

← Prev Question Next Question →