Hover or tap underlined Spanish terms to see their translation and exam tip.
¿Qué tres características, las cuales se combinan entre ellas, tienen las luces de ayuda a la navegación?Which three characteristics, combined, do navigation lights have?
Show the answer
Correct answer: a) Period, phase and colour.
Why it is correct
A light is identified by its rhythm or phase, its period and its colour.
Why the others are not
- b) Height does not identify.
- c) Not that.
- d) Do not identify it.
How to work it out in the exam
- Light: phase, period, colour.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2020 · Convocatoria de diciembre · PER Test 1 · question 39 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.