A device with one side open to the air, used to measure gauge pressure, is a:
AManometer
BMagnetometer
CMicrometer
DMilliampere
Answer & Solution
Correct answer: A. Manometer
1. A fluid column shows the difference.
2. One limb feels the atmosphere.
3. That device is a manometer.
_Source: OpenStax University Physics Volume 1, Chapter 14, Fluid Mechanics._
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