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This post was last edited by 103388716 on 2017-4-20 00:10. To increase the popularity of this section, a daily question activity has been launched; the purpose of this activity is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, they can also easily bring wealth home :) . Participation: Prize of 5 Wealth ; Correct answer: Reward of 10 wealth points ; Note: Questions from the same day will receive full feedback if answered on the same day; answers given the next day will earn 5-8 wealth points. This post is valid for 48 hours. http://bbs.hcbbs.com/static/image/hrline/5.gif Multiple-choice questions (Reorganization section): Regarding screw pumps ( ). A: No trial operation without load is allowed. B: Trial operation without load is permitted. C: Both are acceptable. Correct answer: A – No trial operation without load is allowed. http://bbs.hcbbs.com/hcdown/data/attachment/forum/201704/07/122423adihsdie34h3gsgd.jpg.thumb.jpg======================== Petrochemical Sector – “Creative Ideas for Energy Saving” event (Sponsors sought; highest returns ever available) http://bbs.hcbbs.com/thread-1666758-1-1.html Sponsors are being sought for this event; those interested can contact the event organizer. The Petrochemical Deep Processing version – an event to share pictures of chemical equipment has started! A vast amount of wealth, as well as HCH coins, are waiting for you to claim them: http://bbs.hcbbs.com/thread-1760733-1-1.html. Notice regarding the collection of chemical engineering technical materials in the \"Petroleum and Chemicals Section\": http://bbs.hcbbs.com/thread-1614796-1-1.html
A: No no-load testing is allowed
For screw pumps (A). A: No idle running allowed B: Idle running is permitted C: Both are allowed