Deck : General Navigation - 840/2138
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| In order to remove index error from a sextant, you should adjust the __________. |
| A) horizon glass to make it parallel to the index mirror with the index set at zero |
| B) telescope to make it perpendicular to the sextant frame |
| C) horizon glass to make it parallel to the sextant frame |
| D) index mirror to make it parallel to the horizon glass with the index set at zero |
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