In the following fig. is shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cm. It can be said that the

As cross-section areas of both the tubes A and C are same and tube is horizontal. Hence according to equation of continuity  vA=vC and therefore according to Bernoulli's theorem PA=PC i.e. height of liquid is same in both the tubes A and C.