Multiple choice

Bar is a unit of

  1. atmospheric pressure

  2. water pressure

  3. buoyant force

  4. nones
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A Correct answer
Explanation

Bar is a unit of atmospheric pressure. Metric unit of atmospheric pressure equal to 14.50 pounds per square inch (lb/in2), 1.02 kilograms per square centimeter (kg/cm2), 29.53 inches of mercury (in Hg), or 0.9869 atmosphere. In engineering, the term 'bar gauge' (barG) is used to indicate that the pressure is read from a pressure gauge (which actually measures the difference between the fluid's pressure and the atmospheric pressure).

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