Question

Stagnation point is the point in fluid mechanics where the velocity of the fluid at that point is _____

(a) zero

(b) infinite

(c) constant

(d) unity

This question was posed to me by my school principal while I was bunking the class.

The origin of the question is Stagnation Properties topic in section Compressible Flow of Fluid Mechanics

Answer 1

Right choice is (a) zero

Explanation: Stagnation point is the point in fluid mechanics where the velocity of the fluid at that point is zero. Stagnation points occur at places where the fluid is brought to a state of rest by an object. They usually exist at the surface of objects.