【Daily Question】Pump Equipment Technical Exchange Edition 20180409
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Participation: Prize 3 Wealth； Correct answer: Reward of 10 wealth points ； Note: A reward of 10 wealth points will be given for correct answers within 48 hours; this post is valid for 48 hours. Multiple-choice question: Reasons for the increase in motor current when the pump is operating ( ). A. The packing is too loose or there is an excessive amount of water entering the packing box. B. Friction occurs between the rotating parts inside the pump. C. The pump shaft is bent or there is a significant deviation in the alignment of the shaft axes. D. After the sealing ring wears out, the gap between the sealing ring and the impeller becomes too large. Correct answer: BC https://attach01.hcbbs.com/forum/201801/05/235057wnwxbzxb311ikvvz.jpg.thumb.jpg
Reasons for increased motor current when the water pump is running (ABC). A. The packing is too loose or there is an excessive amount of water entering the packing box. B. Friction occurs between the rotating parts inside the pump. C. The pump shaft is bent or there is a significant deviation in the alignment of the shaft axes. D. After the sealing ring wears out, the gap between the sealing ring and the impeller becomes too large
A. The packing is too loose or there is an excessive amount of water entering the packing box. B. Friction occurs between the rotating parts inside the pump. C. The pump shaft is bent or there is a significant deviation in the alignment of the shaft axes. D. After the sealing ring wears out, the gap between the sealing ring and the impeller becomes too large
Reasons for increased motor current when the water pump is running (BC). A. The packing is too loose or there is an excessive amount of water entering the packing box. B. Friction occurs between the rotating parts inside the pump. C. The pump shaft is bent or there is a significant deviation in the alignment of the shaft axes. D. After the sealing ring wears out, the gap between the sealing ring and the impeller becomes too large