Engine_2014 : Steam Plants - 505/1951
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| In a closed steam and water cycle, which of the conditions listed could prevent main condenser vacuum from reaching the desired level? |
| A) Excess steam leaking from the turbine glands. |
| B) Abnormally low atmospheric drain tank level. |
| C) Main condensate recirculating valve open during maneuvering. |
| D) Dirty boiler economizer tubes. |
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