An Open-Tube Manometer Is Used to Measure the Gauge Pressure

question 85

Multiple Choice

An open-tube manometer is used to measure the gauge pressure in a tank.If the manometer is filled with mercury, and the open end is at a height of 15 cm above the end attached to the tank, what is the gauge pressure in the tank? The density of mercury is 14 x 10³ kg/m³.

• A)2.1 x 10³ Pa
• B)2.1 x 10⁴ Pa
• C)4.0 x 10⁴ Pa
• D)1.2 x 10⁵ Pa
• E)2.1 x 10⁶ Pa

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