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ສອບເສັງທ້າຍພາກ 5342210

Authored by phaivanh Chuangchanh

Education

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ສອບເສັງທ້າຍພາກ 5342210
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ການຕໍ່ຫມໍ້ແປງ3ເຟສມີຈັກແບບ?

2ແບບ

3ແບບ

4ແບບ

5ແບບ

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ຫມໍ້ແປງ3ເຟດນິຍົມໃຊ້ກັບສະຖານທີ່ໃດ?

ໂຮງຮຽນ

ໂຮງຫມໍ

ໂຮງງານອຸດສາຫະກຳ.

ເຮຶອນ.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ຫມໍ້ແປງ3ເຟດມີຈັກໂວນ?

120V

220V

240V

380V

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ກະແສທີ່ໄຫຼໃນສາຍ ມີຄ່າເທົ່າໃດ?

62.4A

53.46A.

17.82A.

30.87A

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ກຳລັງໄຟຟ້າຈິງ ມີຄ່າເທົ່າໃດ?

9.65 kw

9.62 kw

5.55 kw  

8.42 kw.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ເຄື່ອງກຳເນີດໄຟຟ້າ 3 ເຟດປະກອບດ້ວຍຂົດຫຼວດຕົວນຳຈັກຊຸດ?

2ຊຸດ.

3ຊຸດ

4ຊຸດ.

5ຊຸດ

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ໂຫລດຕໍ່ແບບ Y ສາມາດຮັບໄຟຈາກແຫຼ່ງຈ່າຍໄຟສາມເຟດ

ທີ່ມີແຮງດັນເຟດ-ເຟດ(Line voltage)=230kv ແລະມີກະແສໄຫຼ

850 A ເລືອກເເຮງດັນໄຟຟ້າຖານ 250Kv (Line voltage)ແລະ

ກຳລັງໄຟຟ້າຖານ600 MVA (3ເຟດ) ແຮງດັນໄຟຟ້າຂອງໂຫລດເປຍູ

ນິດມີຄ່າທໍໃດ?

0.88.

0.92

0.95.

0.98

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