I don't but what i can imagine is that the one side of the U tube would be at the opening of the venturi and the other side in the smaller tube of the venturi... well that's how i would picture it since it is dealing with different pressures... i would assume, Bruce
Homework Statement
The gauge pressure at the inlet of a horizontal venturi meter is 40kPa. The vacuum at the throat is 38 mm mercury. If a differential U-tube manometer containing mercury is the U-tube and the oil in the connecting tubes is connected to the venturi, what will the difference...