Engine : Expired / General Subjects - 453/881
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| As routine maintenance, the bilge manifold valves are periodically removed and examined. Prior to resecuring the valve bonnets, the valve __________. |
| A) bonnet flange gaskets should be renewed if they were cut or torn |
| B) stem packing should be renewed if the packing has hardened |
| C) disks and seats should be checked and lapped if necessary |
| D) all of the above |
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