Engine_2014 : General Subjects - 2139/3524
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| Dry seal threads, typically used for tubing to pipe connectors, and threaded piping in hydraulic systems are __________. |
| A) the same as National Pipe threads |
| B) different than NPT as the crest of a matching thread is in contact with the trough of the opposing thread |
| C) different than NPT as the flanks of the matching threads are in contact with the opposing threads |
| D) the same as National Fine threads |
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