Pitching is angular motion of the vessel...

Question 1 / 270705eccef9fbacbc34ba4d46991

Question 1 of 270705eccef9fbacbc34ba4d46991

Pitching is angular motion of the vessel about what axis?

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Question 1 of 27070

Q

Pitching is angular motion of the vessel about what axis?

🔍 Key Concepts

• Ship motions: know the six basic motions (surge, sway, heave, roll, pitch, yaw) • Axes of rotation: longitudinal (bow–stern), transverse (port–starboard), vertical (up–down) • Relationship between each motion and its corresponding axis (e.g., roll vs pitch vs yaw)

💭 Think About

• First, recall which motion is the "nodding" up‑and‑down of the bow and stern in a seaway—what is that called? • Then ask: for that motion, is the ship rotating around a line running bow‑to‑stern, side‑to‑side, or straight up‑and‑down? • Match each of the three rotational motions (roll, pitch, yaw) to longitudinal, transverse, and vertical axes, and see which axis lines up with pitching.

✅ Before You Answer

• Be clear on the difference between rotation (roll/pitch/yaw) and translation (surge/sway/heave) • Visualize a line (axis) drawn through the ship for each option and imagine the pitching motion around it • Confirm which axis runs from bow to stern and which runs from port to starboard before choosing.

Question 1 of 27070

Q

Pitching is angular motion of the vessel about what axis?

A

Centerline

B

Vertical

C

Transverse

D

Longitudinal

Question 1 / 270705eccef9fbacbc34ba4d46991

Question 1 of 270705eccef9fbacbc34ba4d46991

Pitching is angular motion of the vessel about what axis?

Back

Question 1 of 27070

Q

Pitching is angular motion of the vessel about what axis?

🔍 Key Concepts

• Ship motions: know the six basic motions (surge, sway, heave, roll, pitch, yaw) • Axes of rotation: longitudinal (bow–stern), transverse (port–starboard), vertical (up–down) • Relationship between each motion and its corresponding axis (e.g., roll vs pitch vs yaw)

💭 Think About

• First, recall which motion is the "nodding" up‑and‑down of the bow and stern in a seaway—what is that called? • Then ask: for that motion, is the ship rotating around a line running bow‑to‑stern, side‑to‑side, or straight up‑and‑down? • Match each of the three rotational motions (roll, pitch, yaw) to longitudinal, transverse, and vertical axes, and see which axis lines up with pitching.

✅ Before You Answer

• Be clear on the difference between rotation (roll/pitch/yaw) and translation (surge/sway/heave) • Visualize a line (axis) drawn through the ship for each option and imagine the pitching motion around it • Confirm which axis runs from bow to stern and which runs from port to starboard before choosing.