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English Translations » 信息处理 » Production Technology [Daily Question] Saturday, November 12

Production Technology [Daily Question] Saturday, November 12, 2011

2011-11-12View Original

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This post was last edited by Refinery Operator on 2011-11-29 18:07. Multiple-choice question: 1. The possible causes of external leakage in centrifugal pumps include (). A. The packing is not properly compressed. B. The packing has hardened and lost its elasticity. C. The contact surfaces between the rotating and stationary rings of the mechanical seal were not leveled properly during installation. D. The gap between the pump casing and the impeller is too small. Note: 1. Please hide your reply; for instructions, see: http://bbs.hcbbs.com/thread-492556-1-1.html. 2. Do not edit after replying. 3. All participants must receive a reward. A, B, C
Reply #22011-11-12
Reply 1# sun-rock ABC

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Translated at 2026-07-25 21:31:19

Original: https://bbs.hcbbs.com/thread-929619-1-1.html

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