Bernoulli’s equation can be applied between any two points on a stream line for a rotational flow field.

Shown below are three pipe sections through which water flows as shown. Option $$(a)$$ to $$(d)$$ below pertain to the direction of the net force on the pipe section due to the flow of water.

State which of the options indicate the correct direction of force for pipe $$1,$$ pipe $$2$$ and pipe $$3.$$

In a band operated liquid sprayer (figure shown below) the liquid from the container rises to the top of the tube because of :