Hover or tap underlined Spanish terms to see their translation and exam tip.
En relación con la Regla 23 del RIPA, “Buques de propulsión mecánica en navegación”, ¿qué luces está obligada a llevar una embarcación a motor de 15 metros de eslora en navegación nocturna?Under Rule 23, what lights must a 15-metre motor boat show under way at night?
Show the answer
Correct answer: a) A masthead light forward, sidelights and a sternlight.
Why it is correct
Under 50 metres one masthead light is enough, plus sidelights and sternlight. A second masthead light is only compulsory from 50 metres.
Why the others are not
- b) The second masthead is extra.
- c) One extra, sternlight missing.
- d) That is for under 12 m.
How to work it out in the exam
- Under 50 m: one masthead.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2025 · Convocatoria de junio · PER Test 1 · question 18 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2025 · Convocatoria de junio · PER Test 2 · question 19 Official paper · Official answer key
Regulations
- IMO: Convention on the International Regulations for Preventing Collisions at Sea, 1972 (COLREGs) · Rule 23
- RIPA, consolidated text (BOE) · Rule 23
Pending instructor review. Machine translation, not reviewed.