Practice Pressure Difference Calculation (2.2) - Laminar and Turbulent Flow (Contnd.)

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is viscosity?
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Think of how syrup moves compared to water.
Question 2.
How do you calculate density from specific gravity?
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Specific gravity is a ratio.
3Question 3.
What indicates laminar flow?
- Reynolds number < 2000
- Reynolds number > 4000
- Both
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Think of the defined thresholds for flow types.
4Question 4.
True or False: The pressure gradient is the same throughout a laminar flow?
- True
- False
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Recall what we discussed about consistent flow.
Question 5.
Calculate the pressure drop in a 20-meter long horizontal pipe with a diameter of 50 mm carrying water at 15 m/s, with viscosity 0.001 Pa·s.
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Convert all units to consistent SI units before calculations.
Question 6.
If the specific gravity of a liquid is 0.95 and a 100 kg mass is collected in 5 seconds, find the pressure difference in a 10-meter pipe with 0.1 m diameter.
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Always reassess your values using specific gravities.

4 more questions in this section. Enroll free to practise them all.