单选题Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.Acargo pump failureBblower failureCdeck seal low water levelDlow inert gas temperature
单选题
Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.
A
cargo pump failure
B
blower failure
C
deck seal low water level
D
low inert gas temperature
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