Hover or tap underlined Spanish terms to see their translation and exam tip.
Obtenemos una demora de aguja de la enfilación del Faro de Punta Carnero con el Faro de Punta Europa de 242º. Calcular la Corrección total.You observe the leading line of Punta Carnero lighthouse with Punta Europa lighthouse at a compass bearing of 242º. Calculate the total compass error:
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Correct answer: c) 2º (+)
Why it is correct
On the leading line of Punta Carnero with Punta Europa (viewing both lights aligned towards the SW), the charted true bearing is Dv = 244º. Therefore Ct = Dv − Da = 244º − 242º = +2º.
Why the others are not
- a) Does not match the difference Dv − Da = 244º − 242º = +2º.
- b) Does not match the difference Dv − Da = 244º − 242º = +2º.
- d) Does not match the difference Dv − Da = 244º − 242º = +2º.
How to work it out in the exam
- Measure on the chart the true bearing of the Punta Europa–Punta Carnero line: Dv = 244º.
- Subtract the compass bearing: Ct = 244º − 242º = +2º.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2019 · Convocatoria de junio · PY Test 1 · question 39 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2019 · Convocatoria de junio · PY Test 2 · question 35 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.