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English Translations » 炼制(催化焦化深加工) » Practice **questions on March 31, 2017; replies will earn 2–

Practice **questions on March 31, 2017; replies will earn 2–6 points (** no scoring after it is displayed, thank you for your replies)

2017-03-31View Original

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Multiple-choice question: Among the following options, those that can cause a decline in the quality of vacuum distillate oil are (A, B, C, D). A. Corrosion and perforation of the tray plates B. Blockage of the metal foam breaker C. Displacement of the packing inside the tower D. Failure of the washing oil distributor
Reply #22017-03-31
A. Corrosion and perforation of the tray plates B. Blockage of the metal foam breaker C. Displacement of the packing inside the tower D. Failure of the washing oil distributor
Reply #32017-03-31
Among the following options, those that will cause a decline in the quality of the vacuum distillate oil are (ABCD). A. Corrosion and perforation of the tray plates B. Blockage of the metal foam breaker C. Displacement of the packing inside the tower D. Failure of the washing oil distributor

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Translated at 2026-07-21 05:07:57

Original: https://bbs.hcbbs.com/thread-1766542-1-1.html

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