Ocean Sea Freight Container Types and Cargo Specifications 1 — Questions and Answers
Question 1: What are the standard external lengths of ISO shipping containers?
- 20 feet and 40 feet (Correct answer)
- 20 feet and 45 feet
- 10 feet and 20 feet
- 30 feet and 40 feet
Correct answer: 20 feet and 40 feet
The two most common ISO standard container lengths are 20 feet (TEU) and 40 feet (FEU), with 45-foot containers also used in some trades.
Question 2: What is a 'High Cube' (HC) container and when is it used?
- A container 1 foot taller than standard (9'6" vs 8'6") used for voluminous, lightweight cargo (Correct answer)
- A reinforced container for extremely heavy cargo
- A container with additional width for oversized goods
- A refrigerated container with extra insulation
Correct answer: A container 1 foot taller than standard (9'6" vs 8'6") used for voluminous, lightweight cargo
A High Cube container is 9 feet 6 inches tall (vs. standard 8 feet 6 inches), providing approximately 13% more cubic volume — ideal for lightweight, voluminous cargo like furniture or garments.
Question 3: What type of container is used for transporting temperature-sensitive cargo like pharmaceuticals or fresh produce?
- Reefer (Refrigerated) Container (Correct answer)
- Open Top Container
- Flat Rack Container
- Ventilated Container
Correct answer: Reefer (Refrigerated) Container
A Reefer container has an integrated refrigeration unit that maintains a set temperature range (typically -25°C to +25°C), making it suitable for perishables, pharmaceuticals, and chemicals.
Question 4: What is an 'Open Top' container primarily used for?
- Cargo too tall to fit through standard container doors, loaded from above by crane (Correct answer)
- Bulk liquids that need ventilation during transit
- Dangerous goods requiring emergency venting
- Automotive vehicles loaded via ramps
Correct answer: Cargo too tall to fit through standard container doors, loaded from above by crane
Open Top containers have a removable roof (tarpaulin or bows) allowing cargo such as machinery, coils, or timber that is too tall for standard containers to be loaded by crane from above.
Question 5: What is a 'Flat Rack' container?
- A container with collapsible end walls but no sides or roof, used for oversized or heavy cargo (Correct answer)
- A standard container stacked flat on a vessel deck
- A container used specifically for paper rolls and flat sheet goods
- A half-height container for dense, heavy loads
Correct answer: A container with collapsible end walls but no sides or roof, used for oversized or heavy cargo
A Flat Rack container has a flat base with collapsible or fixed end walls but no side walls or roof, making it ideal for out-of-gauge cargo like heavy machinery, pipes, or project cargo.
Question 6: What is a 'Tank Container' used for in ocean freight?
- Transporting liquid bulk cargo such as chemicals, food-grade liquids, or gases (Correct answer)
- Storing fuel for the vessel during a voyage
- Transporting compressed gases in pressurized cylinders
- Carrying liquid cargo in flexible intermediate bulk containers (FIBCs)
Correct answer: Transporting liquid bulk cargo such as chemicals, food-grade liquids, or gases
A Tank Container (ISO tank) is a stainless steel pressure vessel within an ISO frame used to transport hazardous or non-hazardous liquids, gases, and powders in bulk.
Ocean Sea Freight Container Types and Cargo Specifications 1
What are the standard external lengths of ISO shipping containers?