On 22 February your 2045 ZT position is LAT 33°19'N, LONG 52°06'W. You observe Polaris bearing 358.1°pgc. At the time of the observation the helmsman noted that he was heading 048°pgc and 065°psc. The variation is 19°W. What is the deviation for that heading?

Correct Answer: Option B — 3°E

The observed Polaris bearing of 358.1°pgc compared to true 360° gives a 1.9° error. Applying the 19°W variation to true heading yields the magnetic heading. Comparing the magnetic heading against the standard compass heading (065°psc) determines the compass deviation of 3°E.