Question 624Navigation General70% to pass
When adjusting a magnetic compass for error, a deviation table should be made _______________.
AI Explanation
The correct answer is A) after adjusting the fore-and-aft and athwartships permanent magnets.
When adjusting a magnetic compass, the first step is to correct for any permanent magnetic deviation by adjusting the fore-and-aft and athwartships permanent magnets. Once this is done, a deviation table should be created to record the compass error at various headings. This deviation table is essential for properly compensating the compass and ensuring accurate navigation.
The other options are incorrect because: B) quadrantal correctors are placed on the compass before creating the deviation table, C) the deviation table should be made after the initial permanent magnet adjustments, and D) variation is a separate correction that is applied after the deviation table is created.
Related Questions
#622 What does a single vertical magnet placed underneath the compass in the binnacle compensate for? #623 Which of the following describes the principal purpose of magnetic compass adjustment? #625 Deviation which is maximum on intercardinal compass headings may be removed by the _______________.#626 Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism. These correctors are the _______________.#627 The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval?