Daily Question on Automation Theory Knowledge (9.15)

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This post was last edited by 18663069001 on 2017-9-18 at 16:57. Process and instrumentation are inseparable; to help everyone gain a better understanding of the basic concepts related to instruments, we have launched the \"One Question per Day\" initiative – just reply to get the answer. To encourage continued participation from everyone! Get a wealth reward just for participating! Higher rewards for correct answers! I hope everyone will participate actively, learn together, and make progress together! ! ! The answer will be announced in two days! Multiple-choice question: 61. The maximum length of the instrument pressure lead pipeline should not exceed ( ) meters. A. 25 meters B. 50 meters C. 75 meters D. 40 meters The answer to this question is: B. 50 meters. To ensure the measurement accuracy of the instruments and reduce lag, the pipelines should be as short as possible. However, for high-temperature and high-pressure steam, in order to enable its complete condensation, the measurement pipeline is required to have a certain length ； For media with large pulsations, it is also necessary for the measurement pipeline to have a certain length in order to stabilize the fluctuations. But it should not exceed 50 meters at most