Question

The velocity of the particle in steady flow is

• A. always tangent to the streamline.
• B. sometimes tangent to the streamline.
• C. never tangent to the streamline.
• D. never a streamline.

Answer 1

Answer: (A)

always tangent to the streamline.

The path taken by a fluid particle under a steady flow is a streamline. It is defined as a curve whose tangent at any point is in the direction of the fluid velocity at that point.