Q. The normal stress is the same in all directions at a point in fluid (Solved)
1. Only when the fluid has zero viscosity and is at rest
2. When there is no motion of one fluid layer relative to an adjacent layer
3. Regardless of the motion of one fluid layer relative to an adjacent layer
4. Only when the fluid is frictionless
5. Only when fluid is frictionless and incompressible
- b. When there is no motion of one fluid layer relative to an adjacent layer