Engine : Steam Plants - 715/811
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| Labyrinth packing rings are installed on turbine diaphragms to minimize __________. |
| A) steam from escaping to the atmosphere |
| B) pressure buildup on both sides of the diaphragm |
| C) air leakage from entering the turbine casing |
| D) interstage steam leakage along the turbine rotor |
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