4. Three different liquids are used in the manometer shown here (a) Derive an expression for P-P, in terms of PA, Pope, h, and he
(b) Suppose fluid A is methanol, it is water, and is a manometer fluid with a specific gravity of
1.37 pressure 1) = 12L0kPa - 30,0 em and he = 240 cm. Calculate ? (kPa),
The level of toluene (a flammable hydrocarbon) in a storage tank may fluctuate between 10 and
400 em from the top of the tank. Since it is impossible to see inside the tank, an open-end manometer
with water or mercury as the manometer fluid is to be used to determine the toluene level. One leg