Engine_2014 : General Subjects - 695/3524
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| On tankers using manually operated tank valves, the deck hand wheel indicator registers the __________ . |
| A) exact lift position of the tank valve disk, through 100% of its operation |
| B) oxygen content of the tank |
| C) approximate number of turns the tank valve has been opened |
| D) level of oil in the tank |
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