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Listening Quiz: Thuyết Trình Nghiên Cứu Động Lực Học Chất Lỏng Tính Toán Của Bình Trộn – Medium Level
Th3 24, 2024
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
What is the main topic of the conversation?
A complaint about a broken pump in a factory
A discussion of a CFD study of a mixing vessel
A report about shipping delays for equipment
A plan to clean a tank before use
Explanation:
Emma and Mark discuss the results of a CFD study for a mixing vessel, including flow, pressure, turbulence, and possible design changes.
2.
What did Emma say about the flow inside the vessel?
It is mostly smooth
It is completely blocked
It is unstable near the top only
It moves too quickly everywhere
Explanation:
Emma directly says, ‘The flow inside the vessel is mostly smooth.’
3.
What did Emma suggest may be needed because of the low-velocity areas?
A stronger cooling system
A change to the impeller
A new control panel
A larger motor
Explanation:
Emma says, ‘We may need to change the impeller’ after noting that some areas have low velocity and may cause poor mixing.
4.
Where is the pressure highest in the vessel?
Along the vessel walls
Near the impeller blades
At the liquid surface
At the tank bottom corners
Explanation:
Emma states that pressure is highest near the impeller blades.
5.
What will Emma and Mark likely do next?
Redesign the entire vessel from scratch
Reduce the turbulence to zero
Test new impeller designs in the model
Stop the CFD study and begin production
Explanation:
Emma says, ‘We should test new impeller designs in the model,’ which is the next step she identifies.
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