question_answer

Consider the following statements:

The state of stress in a fluid consists of normal pressure only if the fluid:

1. is at rest

2. Is in uniform motion

3. Has non-uniform velocity profile

4. Has zero viscosity.

Which of the statements given above are correct?

A) 1, 2 and 3                     

B) 1, 2 and 4

C) 1, 3 and 4                     

D) 2, 3 and 4