Question

The tube of an inclined tube manometer has itsupper end open to air and the lower endconnected to vertical cylinder trough having adiameter 4 times that ofthe tube. The slope ofthe tube is 1 in 4 and specific gravity ofmanometer liquid is 0.72. The space above theliquid in the trough is connected to a gaschamber. When the movement of meniscus inthe tube is 8 cm, change in gas pressure, inheight of water column, is​

Answer 1

Explanation:

Density and density-affecting quantities. Here, a liquid with a lower density is advantageous for achieving a higher sensitivity. However, the idea of using fluids with a very low density to maximize the sensitivity to pressure chances is limited, in particular, due to geometric and thermal restrictions.