You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°W. The variation is 8°W. Find the deviation on a true heading of 236°.

Correct Answer: Option B — 0.5°E

True heading combined with known variation yields magnetic heading. Applying known gyro error and magnetic-gyro comparisons per Bowditch allows calculation of compass deviation. For true heading 236° with specified gyro and variation values, deviation evaluates to 0.5°E.