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Listening Quiz: Khắc Phục Sự Cố Bám Cặn Trong Bộ Trao Đổi Nhiệt – Easy Level
Th4 8, 2025
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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?
Choosing a new office location
Planning a vacation trip
Training employees on safety rules
Troubleshooting fouling in a heat exchanger
Explanation:
John and Emma discuss a fouling problem in a heat exchanger and how to fix and prevent it.
2.
What does John say they should check first?
The outside insulation
The power supply
The pressure and noise level
The flow rate and temperature
Explanation:
John says, ‘First, we should check the flow rate and temperature.’
3.
According to John, what can low flow cause?
The exchanger to stop working permanently
Water to leak out of the system
Deposits to form faster
The tubes to crack
Explanation:
John explains that low flow can cause deposits to form faster.
4.
Which cleaning methods does John suggest?
Steam cleaning or polishing
Replacing the tubes or valves
Water rinsing or drying
Chemical cleaning or mechanical brushing
Explanation:
John says they can use chemical cleaning or mechanical brushing.
5.
Why does John recommend regular checks of the exchanger?
To avoid using any cleaning methods
To make the tubes bigger
To increase the flow rate immediately
To prevent heavy fouling
Explanation:
John says, ‘Regular checks help prevent heavy fouling,’ which shows the purpose of checking often.
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