Hover or tap underlined Spanish terms to see their translation and exam tip.
¿Cómo se denomina la parte de la hélice que transforma el movimiento circular en un empuje?What is the part of the propeller that turns circular motion into thrust called?
Show the answer
Correct answer: a) Blade.
Why it is correct
The blades, turning, push water and produce thrust. The boss only holds them on the shaft.
Why the others are not
- b) It is the shaft passage.
- c) It holds them.
- d) It is a cover.
How to work it out in the exam
- Thrust: blades.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2026 · Convocatoria de abril · PER Test 1 · question 2 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2026 · Convocatoria de abril · PER Test 3 · question 3 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.