Practice Inflow And Outflow (4.1.1) - Mass Conservation Equation - Fluid Mechanics

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9 questions

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Exercise
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6 sample questions

Question 1.
What does the mass conservation principle state?
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Think about what happens in a closed system.
Question 2.
Define inflow in fluid dynamics.
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Consider incoming water in a pipe.
3Question 3.
What is the state of mass conservation?
- Mass can be created
- Mass can be destroyed
- Mass is conserved in a closed system
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Think about a water bottle with no leaks.
4Question 4.
In a steady flow, fluid properties at fixed points change over time.
- True
- False
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Review the definition of 'steady flow'.
Question 5.
A horizontal jet of water strikes a vertical plate at 5m/s with an area of 0.05 m². Calculate the force required to keep the plate stationary if the water has a density of 1000 kg/m³.
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Use the density and velocity to find the momentum.
Question 6.
If a spacecraft is decelerating using a jet that discharges at 100 kg/s with a jet velocity of 1500 m/s, calculate the thrust generated given the original speed was 600 m/s.
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Use the formula for thrust based on mass flow rate and jet speed.

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