Practice Hydraulic Grade Line (hgl) (4.2.1) - Basics of fluid mechanics-II (contd.)

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6 sample questions

Question 1.
What does HGL represent in fluid mechanics?
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Think about pressure and elevation combined.
Question 2.
Write the formula for Hydraulic Grade Line.
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What two main components are involved?
3Question 3.
What does the Hydraulic Grade Line represent?
- Total mechanical energy
- Potential energy
- Pressure and elevation energy
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Recall what components describe HGL.
4Question 4.
Bernoulli's equation is valid under which of the following conditions?
- True
- False
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Think about the flow assumptions we've discussed.
Question 5.
A pipe carries water at 50 kPa pressure and is 3 m above the reference level. Calculate the HGL and describe its significance.
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Use the formula and remember to convert pressure.
Question 6.
Explain how the HGL would change if the pressure in the system increased to 80 kPa while remaining the same height.
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Consider how pressure affects energy.

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