Hover or tap underlined Spanish terms to see their translation and exam tip.
Suponiendo que la Polar coincide con el Polo Norte, tomamos Azimut de aguja a la Polar = 005º. Calcular la corrección totalAssuming Polaris coincides with the North Pole, you observe a compass azimuth of Polaris = 005º. Calculate the total compass error:
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Correct answer: a) ‒5º (minus)
Why it is correct
With Polaris at true north (Zv = 000º), total compass error is Ct = Zv − Za = 000º − 005º = −5º.
Why the others are not
- b) Inverts the sign or value of the difference Ct = Zv − Za = 000º − 005º.
- c) Inverts the sign or value of the difference Ct = Zv − Za = 000º − 005º.
- d) Inverts the sign or value of the difference Ct = Zv − Za = 000º − 005º.
How to work it out in the exam
- Take Zv = 000º for Polaris at the pole.
- Apply Ct = Zv − Za = 000º − 005º = −5º.
Where this question comes from
- Junta de Andalucía · 2016 · 1ª convocatoria · PY Módulo de navegación · question 18 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.