Hover or tap underlined Spanish terms to see their translation and exam tip.
Estando en posición l= 36º 00' N; L= 005º 30' W, navegamos con rumbo verdadero 090º una distancia de 100'. Calcular la situación de llegada.At l= 36º 00' N; L= 005º 30' W, we sail on true course 090º for a distance of 100'. Calculate the arrival position.
Show the answer
Correct answer: d) l= 36º 00' N; L= 003º 26.4’W.
Why it is correct
Heading east latitude does not change. Difference of longitude: 100 / cos 36º = 123.6′, or 2º 03.6′. West longitude falls: 005º 30′ − 2º 03.6′ = 003º 26.4′ W.
Why the others are not
- a) West longitude falls going east.
- b) Latitude does not change.
- c) We are still west of Greenwich.
How to work it out in the exam
- ΔL = departure / cos(latitude).
Where this question comes from
- Ministerio de Transportes (Madrid) · 2026 · Convocatoria de abril · PY Test 1 · question 34 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2026 · Convocatoria de abril · PY Test 2 · question 39 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.