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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q537 - Steam Plants I
64. During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed?
The pump discharge check valve must remain closed during initial starting to prevent boiler pressure from flowing back into the standby pump; it opens automatically when pump discharge pressure exceeds boiler pressure.
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