Hover or tap underlined Spanish terms to see their translation and exam tip.
Señale la respuesta incorrecta. El periodo de cabezada...Identify the INCORRECT statement. The pitching period (“periodo de cabezada”)...
Show the answer
Correct answer: b) Is not affected by the state of the sea.
Why it is correct
Although every hull has a longitudinal period much shorter than its roll period, actual pitching at sea is strongly forced by the wave train (wavelength, period of encounter, course and speed), so it is definitely affected by the state of the sea.
Why the others are not
- a) True: pitching is the vessel’s longitudinal (bow-to-stern) oscillation.
- c) True: because length greatly exceeds beam, the pitching period is much shorter than the rolling period.
- d) True: it depends on each vessel’s hull form, length and longitudinal weight distribution.
How to work it out in the exam
- Pitching period: shorter longitudinal oscillation; claiming it is unaffected by sea state is false.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2020 · Convocatoria de diciembre · PER Test 4 · question 8 Official paper · Official answer key
Regulations
Pending instructor review. Machine translation, not reviewed.