Deck : General Navigation - 2056/2138
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| The refraction correction table given in the Nautical Almanac is based on a standard or average atmospheric density with a temperature of 50°F (10°C) and atmospheric pressure of __________. |
| A) 29.72 inches (1006 millibars) |
| B) 29.83 inches (1010 millibars) |
| C) 29.89 inches (1012 millibars) |
| D) 29.93 inches (1014 millibars) |
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