Engine_2014 : Steam Plants - 1943/1951
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| Why is it important to maintain good vacuum in a main turbine unit while operating astern? |
| A) Reduces windage loss in the astern section. |
| B) Prevents the ahead element from operating backwards. |
| C) Maintains proper temperatures in the ahead stage. |
| D) Limits the amount of time necessary to operate astern. |
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