Practice Friction Factors And Energy Losses (2) - Friction Factors and Energy Losses

Practice: Friction Factors and Energy Losses

Lesson 2Friction Factors and Energy Losses

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10 questions

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

Question 1.
Define the friction factor and its importance in fluid flow.
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Think about how friction affects the motion of objects.
Question 2.
What is the total head loss in a pipe?
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Consider energy as potential energy head.
3Question 3.
What is the primary equation used to calculate head loss in a pipe?
- Bernoulli's equation
- Darcy-Weisbach equation
- Pascal's law
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Recall the name related to friction calculations.
4Question 4.
True or False: Exit loss coefficient is always considered to be 0.
- True
- False
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Think about the definitions of entry and exit in fluid dynamics.
Question 5.
Calculate the total head loss in a 3000 m pipe with a diameter of 0.15 m and a friction factor of 0.03. How does the total head loss change if the friction factor increases to 0.05?
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Remember to use the correct formula.
Question 6.
Design a system with three bends, a valve and a 2000 m long pipe. Each bend has a coefficient of 0.2, and the valve is 5.0. What is the effective head loss? What horsepower is necessary if the total head loss is 15 m?
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Calculate minor losses first!

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