ສອບເສັງທ້າຍພາກ 5342210
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phaivanh Chuangchanh
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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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