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3 cards from this section. Quick, good the night before a test.
Define gauge pressure.
Think about how pressure is measured compared to the surrounding atmosphere.
What does a control volume represent in fluid mechanics?
Consider why you'd want to isolate a specific area.
What happens to pressure as depth increases in a static fluid?
Think about why deeper water feels heavier.
True or False: Gauge pressure can be negative.
Remember what gauges measure.
Calculate the gauge pressure at a depth of 5 m in fresh water. The atmospheric pressure is 101 kPa and water density is 1000 kg/m³.
Consider the definition of gauge pressure and the formula involving fluid density and gravity.
You have a vacuum pressure of -20 kPa. What is the absolute pressure, assuming atmospheric pressure is 101 kPa?
Remember the relationship of absolute pressure with atmospheric and vacuum pressure.
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