Daily Question on Automation Theory Knowledge (7.23)
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Process and instrumentation are inseparable; to help everyone gain a better understanding of the basics of instrumentation, we have launched the \"One Question per Day\" campaign – just reply to get the answers. To encourage continued participation from everyone! Get a wealth reward just for participating! I hope everyone will participate actively, learn together, and make progress together! ! ! Multiple-choice question: 9. The outlet pressure of the oxygen compressor is around 25 MPa. Which of the following pressure gauges is suitable for measuring this value? ( ) A. A regular pressure gauge with a range of 0~25 MPa ； B. Pressure gauge for oxygen at 0~25 MPa C. Pressure gauge for oxygen at 0~40 MPa ； D. Oxygen pressure gauge for 0~60 MPa. The answer to this question is: D
C. Oxygen pressure gauge for 0~40 MPa；