TANGEDCO AE 2018
⭕ A. Steady
⭕ B. Uniform
⭕ C. Unsteady
⭕ D. Neither steady nor uniform
📚 Explanation:
In steady flow, the velocity of the fluid at any given point does not change with time.
🔹 Therefore, the streamline (line tangent to velocity), pathline (path traced by a particle), and streakline (locus of all particles passing a fixed point) all coincide.
🔹 In unsteady flow, these three lines differ due to changing velocity directions over time.
In steady flow, the velocity of the fluid at any given point does not change with time.
🔹 Therefore, the streamline (line tangent to velocity), pathline (path traced by a particle), and streakline (locus of all particles passing a fixed point) all coincide.
🔹 In unsteady flow, these three lines differ due to changing velocity directions over time.
👉 Therefore, the correct answer is: A. Steady
Key Concepts on Flow Lines:
- Steady flow: Velocity does not change with time at a point.
- Streamline, pathline, streakline coincide in steady flow.
- In unsteady flow, all three differ.
- These concepts are fundamental in fluid kinematics.
