Engine : Steam Plants - 234/811
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| Turbine casing flanges are sometimes provided with a system of joint grooving to __________. |
| A) form a labyrinth seal between the casing halves |
| B) increase contact pressure between the casing halves' flanges |
| C) inject sealing compound between the casing halves |
| D) ensure perfect alignment of casing halves |
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