Question

Stream line motion becomes turbulent motion when the velocity of the liquid is:

• A. beyond critical velocity
• B. critical velocity
• C. below critical velocity
• D. variable velocity

Answer 1

The correct option is A beyond critical velocity

In turbulent flow, the motion of a particle after it passes a particular point may be quite different from the motion of the particle that preceded it at that point. Turbulent flow is characterized by randomness or irreproducibility of the motion of individual particles. It usually occurs in fluids moving at high speeds, above a critical velocity.