Practice Conservation Of Mass And Energy Equations (16.2.3)

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9 questions

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the conservation of mass?
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Think about the flow in and out of a system.
Question 2.
What is specific energy?
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Recall the formula involving flow depth and velocity.
3Question 3.
What is the primary concept of the conservation of mass?
- Mass can be created
- Mass flows incompressibly
- Mass inflow equals outflow
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Think about a water tank—what goes in must come out.
4Question 4.
True or False: The specific energy is independent of flow depth.
- True
- False
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Recall the specific energy formula.
Question 5.
A channel has a flow depth of 2 meters and a velocity of 4 m/s. Calculate the specific energy.
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Use the formula for specific energy carefully.
Question 6.
Design a rectangular channel, noting the minimum perimeter for given flow conditions.
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What is the relationship between width and depth?

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