A. A forced vortex occurs when fluid rotates as a solid about an axis
B. In laminar flow, Newton’s law of viscosity does not apply
C. A free vortex occurs, when fluid rotates as a solid
D. In turbulent flow, there are neither cross-currents nor eddies
Correct Answer: A forced vortex occurs when fluid rotates as a solid about an axis ✔
Last Updated: March 11, 2019