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2 cards from this section. Quick, good the night before a test.
What is the purpose of a differential manometer?
Think of where you might need to measure pressure changes.
Define specific gravity.
What fluid do we use as a reference?
What is the purpose of a differential manometer?
It is something we need to calculate how much pressure there's between two areas.
True or False: Specific gravity is a measure of density.
Does it compare one fluid to another?
A tank contains 10 m of water and 3 m of oil (SG = 0.9) above it. Calculate the pressure at the bottom.
Use p = ρgh for both fluids.
You have a manometer measuring pressure between oil and water. If oil height is 0.05m and water is 0.15m, what is the pressure difference?
Formulate knowing that pressure difference = density * height difference.
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