You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic compass heading of 234°.

Correct Answer: Option A — 0.5°E

Utilize the relationship: True = Compass + Deviation + Variation. With a gyro error of 2°E and variation of 8°W, the deviation is determined by comparing the magnetic compass heading to the true heading. Solving for the unknown variable at 234°M confirms a deviation of 0.5°E.