Practice Velocity Triangles In Turbines (4) - Hydraulic Turbines - Fluid Mechanics & Hydraulic Machines

Practice: Velocity Triangles in Turbines

Lesson 4Hydraulic Turbines

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9 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
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does absolute velocity refer to?
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Think about how fluids move toward the turbine.
Question 2.
What component of the velocity triangle is responsible for torque generation?
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It’s the tangential velocity part that you associate with rotation.
3Question 3.
What does the whirl component represent in a turbine's velocity triangle?
- The axial flow component
- The tangential component responsible for torque
- The speed of the blade
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Think about what generates rotational motion.
4Question 4.
True or False: Work done by the turbine increases with decreased absolute velocity.
- True
- False
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Consider how velocity influences energy output.
Question 5.
If a turbine's blade speed is doubled while maintaining the same absolute velocity, discuss how this would affect the whirl component and resulting work done.
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Reflect on the relationship between speed and energy.
Question 6.
Given a scenario where a turbine operates under varying head pressures, analyze how changes in absolute velocity could result in shifts in work output, employing velocity triangles.
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Consider both pressure and speed interactions.

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