This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Magnetic Compass
Prompt focus: While accelerating on an easterly heading in the Northern Hemisphere, the magnetic compass will:
Why the correct answer works
Lead, indicating a more northerly heading
Accelerating in the Northern Hemisphere causes a northerly compass error (lead).
Why the tempting wrong answer fails
Incorrect. Acceleration error swings the compass toward north, not lag.
Plain-language takeaway
The ANDS mnemonic applies in the Northern Hemisphere: Accelerate, North; Decelerate, South. Acceleration on an east or west heading causes the compass to indicate a turn toward north.
Simple analogy
Think of magnetic compass like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.