【Daily Question No. 019】2018.01.19

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【Daily Question No. 019】January 19, 2018: Valve positioners can be classified into pneumatic valve positioners, （ ） valve positioners, and intelligent valve positioners based on the input signal. A. Electrical B. Pneumatic-electrical C. Direct-acting D. Reverse-acting. A: 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 equipment 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 started): https://bbs.hcbbs.com/thread-1657793-1-1.html
2017 Daily Question Summary Thread (updates have started): 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