【Daily Question No. 018】2018.01.18

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【Daily Question No. 018】January 18, 2018: Which of the following statements regarding the precautions for changing hydraulic oil is incorrect? A. Hydraulic oil of the same brand and model should be used. B. The tank can be refilled directly after it has been emptied. C. A filtering device should be used when adding new oil. D. The filter should be cleaned before refilling the oil. B. Due to the limitations on the number of posts in the “One Question per Day” section, the “One Image per Day” content has been moved to the registered devices section; you can access it through the directory I have posted. For management purposes, if you need to view content from a few days ago, please go through the summary post below. 2018 Chemical Engineering Technology Training – Daily Question Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888971
2018 Registered Equipment Section – Daily Image Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970
2018 Hydrogen Production and Hydrogenation Technology Section – Q&A Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888968
2018 LNG Technology Discussion Section – Daily Question Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888973
2017 Q&A Summary Thread (updates have begun): https://bbs.hcbbs.com/thread-1657793-1-1.html
2017 Daily Question Summary Thread (updates have begun): https://bbs.hcbbs.com/thread-1657794-1-1.html
2017 Daily Image Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1875160
2017 LNG Section – Daily Question List: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1804162
2016 Q&A Summary Thread (all updates completed): https://bbs.hcbbs.com/thread-1597792-1-1.html