If an incompressible liquid is continuously flowing through a pipe, the quantity of liquid passing per second is different at different sections.

A flow in which __________ force is dominating over the viscosity is called turbulent flow.

The discharge over a rectangular weir, considering the velocity of approach, is (where H₁ = Total height of water above the weir = H + H_a H = Height of water, over the crest of the weir, and H_a = Height of water, due to velocity of approach)

The efficiency of power transmission through pipe is (where H = Total supply head, and h_f = Head lost due to friction in the pipe)

Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, at right angles to the direction of flow of the liquid is known as lift.