Hover or tap underlined Spanish terms to see their translation and exam tip.
Se denomina núcleo de la hélice a:The propeller boss is:
Show the answer
Correct answer: b) The part by which the propeller fits onto the shaft.
Why it is correct
The boss is the propeller’s centre, where blades join and it fits the shaft. It turns with it.
Why the others are not
- a) It turns.
- c) The blade.
- d) The other way.
How to work it out in the exam
- Boss: shaft fitting.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2025 · Convocatoria de noviembre · PER Test 2 · question 1 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2025 · Convocatoria de noviembre · PER Test 4 · question 4 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.