Deck General · Cargo Handling & Securing
When securing general cargo with lashings, the primary purpose of dunnage placed between the cargo and the ship's structure is to:
- AIncrease the total cargo weight that can be loaded
- BProtect cargo from moisture, allow air circulation, and prevent chafing against hard surfaces✓ Correct
- CReduce the vessel's rolling period by raising the center of gravity
- DMeet IMDG Code requirements for hazardous cargo stowage
Explanation
Dunnage (typically timber, matting, or airbags) serves multiple functions: it lifts cargo off the tank top to allow ventilation and drainage, protects cargo from sweat and bilge water, prevents chafing against metal structure, and helps distribute point loads. It is a fundamental breakbulk cargo seamanship practice.
Authority: 46 CFR
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