Where do signs of racking stresses generally...

🔍 Key Concepts

• Racking stress is caused by rolling and deforming the ship’s transverse (side-to-side) structure • Think about where frames, beams, and floors meet and how the hull resists side-to-side distortion • Consider which areas are most involved in supporting the ship’s transverse strength, not longitudinal (front–back) strength

💭 Think About

• When the ship rolls, which parts of the internal structure are trying to twist out of square, like a box being pushed sideways? • Which answer choice describes the main intersection points of the transverse structural members that form the ship’s ‘box’ structure? • Which options can you eliminate because they relate more to longitudinal strength, shafting, or bottom/keel strength rather than transverse distortion?

✅ Before You Answer

• Be clear on the difference between racking stress (transverse/rolling) and longitudinal bending (hogging/sagging) • Identify where frames, beams, and floors come together and what type of stress they mainly experience • Eliminate choices that focus on propulsion machinery, keel/garboard plating, or local bow/stern shell rather than overall transverse hull distortion

Where do signs of racking stresses generally appear on the vessel?

At the junction of the frames with the beams and floors

At the thrust bearing of the main shaft

On the garboard strake, at each side of the keel

At the bow and stern shell frames and plating

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🔍 Key Concepts

💭 Think About

✅ Before You Answer