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Listening Quiz: Tính Toán Kích Thước Van An Toàn Cho Phản Ứng Nhiệt Không Kiểm Soát – Easy Level
Th8 11, 2024
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
What is the conversation mainly about?
Planning maintenance for a damaged vessel
Discussing how to size a relief valve for a vessel that may undergo thermal runaway
Explaining how to design a vessel from scratch
Comparing different types of chemical reactions
Explanation:
Jessica and David talk about why a relief valve is needed, what thermal runaway means, and how to choose the correct valve size.
2.
According to Jessica, what does thermal runaway mean?
The temperature can rise fast
The pressure inside the vessel drops quickly
The reaction stops suddenly
The vessel becomes larger over time
Explanation:
Jessica directly explains that thermal runaway means the temperature can rise fast.
3.
How do Jessica and David choose the right relief valve size?
By measuring how long the vessel has been in use
By calculating the maximum flow from the reaction
By estimating the vessel’s color and shape
By checking the outside temperature only
Explanation:
Jessica says they calculate the maximum flow from the reaction to choose the right valve size.
4.
Why do they use worst-case scenario data when sizing the valve?
To ensure safety at all times
To reduce the amount of testing needed
To avoid calculating pressure
To make the vessel react more quickly
Explanation:
Jessica says they use worst-case scenario data to ensure safety at all times.
5.
Why does Jessica explain the meaning of thermal runaway to David?
Because she wants to show that the vessel is not dangerous
Because she is changing the topic to maintenance
Because David already knows the answer
Because she is helping him understand why the relief valve is necessary
Explanation:
Jessica explains thermal runaway so David can understand the danger and why the relief valve must be sized correctly.
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