Refining Knowledge (Technology) Daily Question (27)10.19

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This post was last posted by Shui Changshou on 2009-10-22 11:58. The editor welcomes everyone to actively participate in the learning of professional basic knowledge in the Refining and Processing Technology Exchange Area.* and discuss! According to the unified requirements of the forum, the maximum rating for this activity is 10 wealth, and ratings of charm are prohibited. At the same time, friendship and repeated ratings are declined. In addition, if you answer questions from the same IP address, only the first answer will be valid. Please be careful when posting, editing is invalid! Those who have different opinions on the reference answers provided can post for discussion the next day, and appropriate rewards will be given to those who provide answers or personal opinions to the reference answers to the daily questions! The important thing is to participate, and you will get prizes if you participate! In order to prevent some members from plagiarizing other members' answers, please hide your posts when answering questions. For specific hiding methods, see: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Note: Oil refining knowledge (technology) daily question urgently solicits questions from friends: http://bbs.hcbbs.com/thread-553526-1-1.html Answerers are expected to actively participate! 1. Single choice questions. 1. The performance of the stripping section is good or bad, based on__ _ _ _ _ to judge. A. Carbon determination of the regeneration agent B. Coke production rate C. Hydrogen content in the coke D. Regeneration temperature 2. The heating furnace can be ignited only after the gas sampling and analysis is qualified, and the gas oxygen content is controlled below ( ) A. 0.1% b． 1.0% C． 1.5% D. 2.0% 3. For a plate tower with an inner diameter of no more than 1600mm, after the tray is assembled, the allowable difference in horizontality of the tray surface on the entire surface is ( ) mm A. 3B. 4C． 5D． 6 4. When the fractionation tower is clogged with salt, the top of the tower should be washed with ( ) to dissolve it. A. NH3H2O ​​B. H2SO 4 C. H2O D. HCL 5. After the steam passes through the nozzle of the vacuum pump and is converted into energy, the pressure of the mixed gas discharged by the vacuum pump ( ) is sucked into the chamber pressure, thereby achieving the purpose of vacuuming. A． Equal to B. Less than C. Greater than D. Unable to determine 2. True or false question. 6. The gas and liquid flow directions on the tongue tray of the fractionation tower are opposite. ( ) 7. The recovery efficiency of the flue gas turbine is the highest under rated conditions. ( ) 8. When driving, the normal pressure tower should open side lines from bottom to top. ( ) 9. Steam boilers are not special equipment. ( ) 10. During the decompression and vacuum test process, the vacuum degree is required to be recorded and checked every 2 hours. If it does not meet the requirements, the vacuum should be broken and then filled with steam to check for leaks. ( ) Single-choice questions plus true-false questions, 10 questions every day, and one fortune will be awarded for each correct answer. illustrate: The answers will be announced at least 16 hours later, and scores will be given after the answers are published. After the answers are published, those who respond again will not be scored. Reference answer: CBBCC wrong right wrong wrong right