Hover or tap underlined Spanish terms to see their translation and exam tip.
¿Cómo se denomina al fenómeno meteorológico en el que la diferencia de potencial eléctrico entre objetos en punta como mástiles o pararrayos en un barco y la base de una nube, dan lugar a descargas eléctricas, manifestándose como un resplandor de color azul o verde, que envuelve los extremos y que desaparece con una explosión apagada?What is the name of the weather phenomenon in which the electrical potential difference between pointed objects, such as a boat’s masts, and the cloud base causes discharges?
Show the answer
Correct answer: d) St Elmo’s Fire.
Why it is correct
St Elmo’s Fire is a glowing discharge on points such as masts.
Why the others are not
- a) That is an optical effect at sunset.
- b) They are due to solar wind.
- c) They are optical effects.
How to work it out in the exam
- Masthead and discharge: St Elmo.
Where this question comes from
- Región de Murcia · 2025 · 2ª convocatoria · CY Tipo 1 · question 30 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2023 · Convocatoria de noviembre · CY Test 1 · question 23 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2023 · Convocatoria de noviembre · CY Test 2 · question 26 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.