Question

what type of liquid flow obey in Bernoulli's equation​

Answer 1

The assumptions are as follows :

1.) The flow must be steady.

That is, the fluid properties of the fluid such as density and velocity at a point cannot change with time.

2.) The flow must be incompressible.

Even though pressure varies, the density must remain constant along a streamline.

3.) Friction by viscous forces has to be negligible.

Answer 2

Fluids are the liquids which obey Bernoulli equation.