Hover or tap underlined Spanish terms to see their translation and exam tip.
El cruce del horizonte aparente por el limbo superior del sol en descenso, se conoce como:The crossing of the apparent horizon by the Sun’s upper limb as it descends is known as:
Show the answer
Correct answer: c) Apparent sunset (ocaso del sol).
Why it is correct
In celestial navigation, apparent sunset is defined as the instant when the descending Sun’s upper limb touches the visible sea horizon (owing to refraction and semi-diameter, the Sun’s centre is already about 50′ below the true horizon).
Why the others are not
- a) The winter solstice is the annual instant when the Sun reaches its furthest south declination.
- b) The summer solstice is the annual instant when the Sun reaches its furthest north declination.
- d) The upper limb crossing the horizon while ascending is apparent sunrise.
How to work it out in the exam
- Sun’s upper limb crossing the apparent horizon while descending = sunset.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2021 · Convocatoria de diciembre · CY Test 1 · question 6 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2021 · Convocatoria de diciembre · CY Test 3 · question 5 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.