Steering of a ship: Choose the correct definition of the motion. Marine dynamics terminology: Identify what is meant by ‘‘steering’’ in ship motions (pitch, yaw/turn, roll). Select the correct description.
Mechanical Engineering
Theory of machines
Difficulty: Easy
Choose an option
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AUp–down motion in a vertical plane (pitching) about the transverse axis
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BTurning the ship on a curved path to right or left while moving ahead (yaw/turning)
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CSideways rocking motion (rolling) about the longitudinal axis
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DHeave (pure vertical translation) without turning
Answer
Correct Answer: Turning the ship on a curved path to right or left while moving ahead (yaw/turning)
Explanation
ConceptSteering is the action of changing heading—i.e., turning (yawing) the ship to port or starboard while progressing forward.
Why others are wrong?Pitching is rotation about the transverse axis (bow up/down). Rolling is about the longitudinal axis. Heave is vertical translation.
Final AnswerTurning the ship on a curved path to right or left while moving ahead (yaw/turning)