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A HRB=2300, entramos en el Puerto deportivo de Mazagón con un calado máximo de 1,80 m. y amarramos en un atraque con sonda carta Sc=1,60 metros. Del Anuario de Mareas se obtienen los siguientes datos: corrección aditiva para el intervalo de llegada, ca=0,30 metros y altura de la bajamar más próxima abjp=0,65 metros. - Se pide Sonda bajo la quilla del yate en ese instante.At ship’s clock 2300, we enter the marina at Mazagón with a maximum draught of 1.80 m and tie up at a berth with charted sounding Sc = 1.60 metres. The Tide Tables give: additive correction for the arrival interval, ca = 0.30 metres, and nearest low water height abjp = 0.65 metres. Find the water under the yacht’s keel at that moment.
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Correct answer: c) 0.75 metres
Why it is correct
1.60 + 0.65 + 0.30 − 1.80 = 0.75 m.
Why the others are not
- a) The result is different.
- b) The result is different.
- d) The result is different.
How to work it out in the exam
- Water under the keel = charted sounding + height of tide − draught.
- The height of tide is the low water plus the additive correction from the Anuario.
Where this question comes from
- Región de Murcia · 2026 · 2ª convocatoria · PY Tipo 1 · question 37 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.