OS OS Cargo Handling and Stowage 1 — Questions and Answers
Question 1: What does the term 'broken stowage' refer to in cargo operations?
- Space lost between cargo units that cannot be filled (Correct answer)
- Damaged cargo that must be restowed
- Cargo loaded out of sequence
- Cargo stowed below deck
Correct answer: Space lost between cargo units that cannot be filled
Broken stowage refers to the wasted space between cargo units that cannot be utilized due to irregular shapes or packaging.
Question 2: Which document lists all cargo aboard a vessel and is used by customs authorities?
- Bill of lading
- Cargo manifest (Correct answer)
- Stowage plan
- Dangerous goods declaration
Correct answer: Cargo manifest
The cargo manifest is a comprehensive list of all cargo aboard the vessel and is required by customs authorities at ports of call.
Question 3: When loading heavy cargo, it should be stowed:
- As high as possible to improve stability
- As low as possible in the hold to lower the center of gravity (Correct answer)
- Evenly distributed across all decks
- Only on the port side
Correct answer: As low as possible in the hold to lower the center of gravity
Heavy cargo should be stowed as low as possible in the hold to lower the vessel's center of gravity and improve stability.
Question 4: What is a dunnage used for in cargo stowage?
- Measuring cargo weight
- Protecting cargo from damage and moisture (Correct answer)
- Securing hatches
- Calculating freight charges
Correct answer: Protecting cargo from damage and moisture
Dunnage consists of materials such as wood, matting, or air bags placed around cargo to protect it from damage, moisture, and movement during the voyage.
Question 5: What does the term 'ullage' mean in the context of liquid cargo tanks?
- The total tank capacity
- The space between the liquid surface and the top of the tank (Correct answer)
- The sediment at the bottom of the tank
- The rate at which liquid is pumped
Correct answer: The space between the liquid surface and the top of the tank
Ullage is the unfilled space between the surface of the liquid and the top of a cargo tank, necessary to allow for thermal expansion.
Question 6: Which of the following is classified as a Class 1 dangerous good under IMDG Code?
- Flammable liquids
- Explosives (Correct answer)
- Radioactive materials
- Corrosive substances
Correct answer: Explosives
Under the IMDG Code, Class 1 dangerous goods are explosives, which require special stowage and handling procedures aboard vessels.
OS OS Cargo Handling and Stowage 1
What does the term 'broken stowage' refer to in cargo operations?