Hover or tap underlined Spanish terms to see their translation and exam tip.
Situados en la posición A (35º55´N; 005º05´W) nos dirigimos en una embarcación a vela a una velocidad de 5 nudos hacia la posición B (36º10´N; 006º25´W). ¿Cuál de las siguientes respuestas más se aproxima al Rumbo y distancia entre la posición A y B?At position A (35º55´N; 005º05´W) we head in a sailing boat at 5 knots for position B (36º10´N; 006º25´W). Which answer is closest to the course and distance from A to B?
Show the answer
Correct answer: c) Course: 283º; Distance: 66.7 miles.
Why it is correct
Δlat = 15′ N. Departure = 80′ × cos 36º = 64.7′ W. Course 283º, about 66.4 miles.
Why the others are not
- a) It does not match the working.
- b) It does not match the working.
- d) It does not match the working.
How to work it out in the exam
- Find the difference of latitude and the departure: ΔL × cos(mean latitude).
- Course = arctan(A / Δlat). Distance = root of the sum of squares.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2022 · Convocatoria de diciembre · PY Test 1 · question 35 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2022 · Convocatoria de diciembre · PY Test 2 · question 38 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.