# A simple manometer is used to measure the pressure of oil (sp.gr. 0.8) flowing in a pipeline. Its right limb is open to atmosphere and the left limb is connected to the pipe. The center of the pipe is(9 cm) below the level of the mercury in the right limb. If the difference of the mercury level in the two limbs is (15 cm), determine the absolute and the gauge pressures of the oil in the pipe.

Question-AnswerCategory: Fluid MechanicsA simple manometer is used to measure the pressure of oil (sp.gr. 0.8) flowing in a pipeline. Its right limb is open to atmosphere and the left limb is connected to the pipe. The center of the pipe is(9 cm) below the level of the mercury in the right limb. If the difference of the mercury level in the two limbs is (15 cm), determine the absolute and the gauge pressures of the oil in the pipe.
Mazurek Gravity Staff asked 1 year ago
A simple manometer is used to measure the pressure of oil (sp.gr. 0.8) flowing in a pipeline. Its right limb is open to atmosphere and the left limb is connected to the pipe. The center of the pipe is(9 cm) below the level of the mercury in the right limb. If the difference of the mercury level in the two limbs is (15 cm), determine the absolute and the gauge pressures of the oil in the pipe.
Mazurek Gravity Staff answered 1 year ago

Consider the diagram shown below for the given manometer.

The density of the oil is

The density of the mercury is
The gauge pressure in the pipe can be determined as,

The absolute pressure in the pipe can be determined as,