【Daily Question】 2016 04 07 Hydrogenation Sector Multiple-choice Question
Thread Content
This post was last edited by Yitailong'er on 2016-4-15 at 15:35. [Daily Question] 2016-04-07: Hydrogenation section – Multiple-choice questions (multiple answers). The general principles for purging equipment are ( ). A. Purge should be carried out in accordance with the established process. B. Both the main lines and branch lines should be purged simultaneously. C. Purging should be done in segments as much as possible. D. The pressure of the purge medium must not exceed the design pressure of the area being purged. ACD @Guan Gongyu @sgwj @lyf0506 @dlutyj @stone2000 @tiyiss @guoliqun. Promotion of petrochemical-related activities: Notice regarding the “I Save Energy, Where Are You?” event in the petrochemical area: http://bbs.hcbbs.com/thread-1579199-1-1.html. This event offers awards in both textual and photographic categories; when there are over 200 entries, an additional grand prize will be awarded, worth 600 Haichuan coins. If there are more than 300 entries, the grand prize value increases to 1,000 Haichuan coins, and if there are 500 entries, it rises to 1,500 Haichuan coins. First prize: 3 Haichuan commemorative water cups. Second prize: 5 winners, each receiving 120 Haichuan coins. Honorable mentions: several winners, each receiving 200 wealth points. 1. Thread on soliciting ideas for award-winning content organized by categories: http://bbs.hcbbs.com/thread-1568416-1-1.html (Source: Haichuan Chemical Industry Forum). 2. [Petrochemical Weekly] Issue No. 9, dated 2016-3-12 (Summary of recent petrochemical activities): http://bbs.hcbbs.com/thread-1568615-1-1.html (Source: Haichuan Chemical Industry Forum). 3. “Haichuan Gratitude Season” [Petrochemical Section] – Summary of various events: http://bbs.hcbbs.com/thread-1533218-1-1.html (Source: Haichuan Chemical Industry Forum). 4. [Petrochemical Section] – Summary of posts related to basic knowledge (Supported by the main forum; amazing prizes await you): http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum)
The general principles for purging a device are (A. Purge in the direction of the process flow; C. Purge in segments as much as possible; D. The pressure of the purging medium must not exceed the design pressure of the area being purged).
A. The purging should proceed in accordance with the established process. C. Purging should be carried out in segments as much as possible. D. The pressure of the purging medium must not exceed the design pressure of the area being purged
The general purging principle for the device is (ACD). A. Purge should be carried out in accordance with the process flow. B. Both the main line and branch lines should be purged simultaneously. C. Purging should be done in segments as much as possible. D. The pressure of the purge medium must not exceed the design pressure of the area being purged
ACD should first blow the main line and then the branch lines, to prevent debris from the main line from entering the branch lines, as well as to avoid using too much air at the same time
C. Purging should be carried out in segments as much as possible. D. The pressure of the purging medium must not exceed the design pressure of the area being purged
A. The purging should proceed in accordance with the established process. C. Purging should be carried out in segments as much as possible. D. The pressure of the purging medium must not exceed the design pressure of the area being purged