States that the velocity of the fluid in contact with the surface is equal to the velocity of that surface

The No-slip boundary condition.

Explanation:

The no-slip boundary condition states that the velocity of the fluid in contact with the surface is equal to the velocity of that surface, both the normal and tangential components of the fluid velocity field are equal to zero.

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

pecialized keyboards