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Listening Quiz: Chọn Tiết Diện Cáp Phù Hợp Cho Động Cơ Lớn – Easy Level
Th6 21, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Kỹ sư điện (English for Electrical Engineer)
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1.
What is the conversation mainly about?
How to reduce the length of cables in a factory
Why selecting the correct cable size matters for a motor
How to repair a damaged motor after a fire
Which brand of cable is cheapest for large motors
Explanation:
Robert and Jessica discuss why cable size is important, how to choose it, and how it affects safety and performance.
2.
What can happen if the cable is too small?
It can overheat
It can shorten the cable length
It can increase the motor load
It can make the motor run faster
Explanation:
Robert says that if the cable is too small, it can overheat.
3.
What two things do Robert and Jessica check to determine the right cable size?
The cable brand and the motor speed
The motor load and the cable length
The motor color and the room temperature
The fire alarm and the power switch
Explanation:
Robert says they check the motor load and the cable length.
4.
Why does Robert say a longer cable needs a bigger size?
Long cables have more resistance and voltage drop
Longer cables are always cheaper
Short cables cannot carry any power
Bigger cables are easier to install
Explanation:
Robert explains that long cables have more resistance and voltage drop, so a bigger cable is needed to reduce those problems.
5.
Why does Jessica say, ‘That makes sense.’?
She wants Robert to stop explaining
She is unsure whether the motor works
She is asking for a different cable brand
She understands why cable size affects motor safety
Explanation:
Jessica says this after Robert explains that bigger cables reduce voltage drop and heat, and she agrees that safety matters.
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