Instruments: [Daily Question] February 17, 2011

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This post was last edited by cnooczhouyx on 2011-2-21 09:19. [Daily Question] Question for February 17, 2011: 1. When it is necessary to take pressure readings near a valve, if the pressure measurement point is located in front of the valve, then the distance from the valve must be ( ) the diameter of the pipeline. A. 0.5 times B. 1 time C. 2 times D. 3 times 2. A primary point refers to a point in a detection system or control system that is in direct contact with the process medium; which of the following is not a primary point? A. Pressure measurement point B. Thermal resistor installation point C. Sampling point for chemical medium analysis D. Throttling element location Remarks: 1) Rewards will be given to the top 50 participants; in principle, no additional points will be awarded beyond 50 participants. Among them, the first 20 who provide correct answers will receive a \"Wealth 5\" reward, while those from 21st to 50th will receive a participation award. Those who get 3 correct answers receive a certain reward and those who get 2 incorrect answers receive another ； Points can be awarded additionally for detailed analysis, in-depth discussion, and discretion ； 2) Please hide your replies; the method for doing this is at http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit the replies after posting them. (No rewards will be given for any replies that are not hidden. ) 3) Expired posts will be closed; answers will become visible after the post is closed ； Thank you all for your participation ； 【Daily Question】Answer for February 17, 2011: 1. C 2. C.