Refining Knowledge (Technology) Daily Question (89)12.23

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Everyone is welcome 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. 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. 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 H9 Q8 x: O/ {9 e: F P.S.: 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. Multiple choice question 1. The degree to which each component in the mixed gas can be dissolved and absorbed depends on__ _ _ _ _ . A. The partial pressure of the component in the gas B. The equilibrium partial pressure of the component in the solution C. Depends on both A and B D. It has nothing to do with A and B 2. The butterfly valve is selected for the main air and flue gas because ( ) A. The butterfly valve has small pressure drop, fast speed regulation and is suitable for fluid media containing powder. B. The gate valve is not tightly sealed and is not suitable for large pipelines. C. The butterfly valve has good sealing and is suitable for automatic control. D. The butterfly method has low cost and high control accuracy. 3. The diameter of the atmospheric tower is limited by the following: ( ) A. Liquid flooding B. Mist entrainment C． Flooded Tower D． The liquid residence time in the downcomer pipe of the stripping section 4. For most crude oils in my country, the total extraction volume under normal pressure is equivalent to the total distillation volume of the actual Buddha point distillation of crude oil ( )°C. A． 300~350 B. 0~350 C. 350~500 D. 350~370 5. The purpose of measuring the octane number of gasoline is (). A. To judge the quality of gasoline vaporization performance. B. To judge the quality of gasoline anti-knock performance. C. To judge the quality of gasoline starting performance. D. To judge the quality of gasoline ignition performance. 2. True or false question. 6. No matter how much or how little carbon is contained on the catalyst, secondary combustion may occur. ( ) 7. No matter what kind of fast separation is used, the fundamental reason why the reaction oil and gas and the catalyst can be separated is because of the large density difference. ( ) 8. For each stage of compressor, the surge flow rate at different speeds is fixed. ( ) 9. After the self-locking structure takes action, when the parameters return to normal, the self-locking structure will automatically return to normal state. ( ) 10. The advantage of T-shaped fin tube is that the heat transfer performance is mainly controlled by the complex gas-liquid two-phase flow in the channel. The boiling in the groove causes the gas to escape regularly. ( )