Hover or tap underlined Spanish terms to see their translation and exam tip.
Si conocemos el coeficiente de corredera podemos calcular:If we know the log coefficient we can calculate:
Show the answer
Correct answer: c) The boat's true speed, multiplying the coefficient by the log speed
Why it is correct
True speed = log coefficient × log speed.
Why the others are not
- a) You multiply, not divide.
- b) The formula is inverted.
- d) The log does not measure current.
How to work it out in the exam
- Log readings are corrected by multiplying by the coefficient.
Where this question comes from
- Junta de Andalucía · 2016 · 3ª convocatoria · PER Modelo A · question 38 Official paper · Official answer key
- Junta de Andalucía · 2016 · 3ª convocatoria · PER Modelo B · question 37 Official paper · Official answer key
- Junta de Andalucía · 2025 · 1ª convocatoria · PER Modelo A · question 39 Official paper · Official answer key
- Junta de Andalucía · 2025 · 1ª convocatoria · PER Modelo B · question 39 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.