Hover or tap underlined Spanish terms to see their translation and exam tip.
Nos encontramos situados en un punto -A- de l= 35º 50'N – L= 006º 10'W y damos rumbo hacia otro punto -B- de l= 35º 55'N – L= 005º 55'W. Velocidad que llevamos= 9 nudos. Calcular el tiempo que tardaremos en alcanzar el punto -B-:We are at a point A at l = 35º 50'N – L = 006º 10'W and set course for another point B at l = 35º 55'N – L = 005º 55'W. Our speed is 9 knots. Calculate the time to reach point B:
Show the answer
Correct answer: a) 1 hour 28 minutes.
Why it is correct
Difference of latitude: 5′. Departure: 15′ × cos 35º52′ = 12.2. Distance: 13.1 miles. Time: 13.1 / 9 = 1.46 h, about 88 minutes.
Why the others are not
- b) It confuses 1.46 hours with 1h 46m.
- c) It would imply about 11 miles.
- d) It would imply about 14 miles.
How to work it out in the exam
- Turn decimal hours into minutes: 0.46 × 60 = 28.
Where this question comes from
- Región de Murcia · 2020 · 1ª convocatoria · PER Tipo 1 · question 42 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.