Hover or tap underlined Spanish terms to see their translation and exam tip.
En un sextante, ¿a qué se define "visor de horizonte"?In a traditional marine sextant, how is the “horizon glass” (“visor de horizonte”) defined?
Show the answer
Correct answer: c) A mirror fixed to the frame through which the horizon is viewed: the half nearest the frame is silvered to reflect the body’s image, and the other half is transparent.
Why it is correct
In a traditional split-mirror marine sextant, the horizon glass is mounted on the frame: the half closest to the frame is silvered to reflect the image of the celestial body from the index mirror, while the outer half is clear glass through which the sea horizon is viewed directly.
Why the others are not
- a) The horizon glass is a frame-mounted mirror, not an accessory lens, and the silvered half is next to the frame.
- b) It is a mirror fixed to the sextant frame, not an accessory lens.
- d) The silvered half is the inner half next to the frame, not the outer half.
How to work it out in the exam
- Horizon glass: fixed to the frame; inner half next to the frame silvered (reflects body) and outer half clear (horizon).
Where this question comes from
- Ministerio de Transportes (Madrid) · 2019 · Convocatoria de junio · CY Test 1 · question 3 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2019 · Convocatoria de junio · CY Test 2 · question 10 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.