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Engine_2014 : Steam Plants - 1765/1951
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When preparing to get underway and the jacking gear has been disengaged, the main turbine rotor should NOT be allowed to remain stationary for more than 3 minutes because __________ .
A) uneven heating from gland seal steam can cause distortion of the rotor
B) the turbine drain lines can fill with condensate
C) main condenser vacuum will drop rapidly without steam flow through the main unit
D) with no rotor movement, the journal bearings may overheat due to reduced lube oil flow
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