What fluid will we be flowing through the Venturi Tube Purif

What fluid will we be flowing through the Venturi Tube? Purified water Mercury Room air Tap water Pure nitrogen Venturi gas

Solution

Venturi tube works on differential pressure principle

It is used to measure flow of different fluids like steam , liquids and gases

So for what fluid you want to measure flow that fluid will flow through venturi tube

According to options purified water is more apt