In order to avoid tendency of separation at throat in a venturimeter, the ratio of the diameter at throat to the diameter of pipe should be

In two dimensional flow, the flow does not take place in a curve.

When an internal mouthpiece is running full, the discharge through the mouthpiece is twice the discharge when it is running free.

The pressure at a stagnation point is always low.

When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called