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Process Engineering Division – Instrumentation and Automation Technology Exchange Forum – Daily Question – Questions 12–28

2019-12-28View Original

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Process Engineering Section – Instrumentation and Automation Technology Forum – Daily Question – Questions 12–28: Multiple-choice questions. There are two control valves, with adjustable ratios of R1 = R2 = 30. The maximum flow rate for the first valve is Q1max = 100 m3/h, while that for the second valve is Q2max = 4 m3/h. When using split-range control, what is the achievable adjustable ratio? (   )  (A), 740 (B), 300 (C), 60 (D), 900  Answer: A

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