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A fourth engineer or third assistant engineer is the most Junior engine officer in the engine department of a merchant vessel.
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Fourth engineer | Department | Engine department | 1.00 | infobox |
| Fourth engineer | Duties | Daily maintenance and operation in the engine department | 1.00 | infobox |
| Fourth engineer | Licensed | Yes Merchant Mariner Credential | 1.00 | infobox |
| Fourth engineer | Other names | Third assistant engineer | 1.00 | infobox |
| Fourth engineer | Reports to | Chief engineer, second engineer, third engineer | 1.00 | infobox |
| Fourth engineer | Requirements | Completed 4 year course at academy or complete exams as unlicensed engineer with required sea time | 1.00 | infobox |
| Fourth engineer | Watch (at sea) | Engine room on board ships (2000-0000, 0000-0400, 0400-0800, 0800-1200, 1200-1600, 1600-1800, 1800-2000) | 1.00 | infobox |
| Fourth engineer | Watch (in port) | Engine room, security checkpoint (1600-2400) | 1.00 | infobox |
| Fourth engineer | Watchstander | Depends on manned or unmanned engine room, may be called in to do security watches when in port | 1.00 | infobox |
| HVAC | instance of | They are trained to be competent in a wide variety of fields | 0.80 | text |
| Fourth engineer | related to Duties | The | 0.60 | section |
| Fourth engineer | related to Duties | Generally | 0.60 | section |
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