Question

The pressure at a point is equal to all direction

• A. only when the fluid is inviscid
• B. when the fluid is incompressible
• C. when the fluid is at rest
• D. in a laminar flow

Answer 1

Answer:

C. when the fluid is at rest

According to Pascal's Law, the pressure at a point in a static fluid is equal in all directions. This law is valid for fluid at rest, ideal fluid flow where viscous force is negligible, and when no relative motion exists between different fluid layers.