General Flashcards
Difference between Gross Tonnage and Net Tonnage?
Gross Tonnage: Moulded volume of all the ship’s internal spaces. Measured in Volume.
Net Tonnage: Volume of the ship’s revenue spaces (Cargo Holds or Passenger cabins in a passenger ship)
What is Stowage Factor?
The density of cargo. Measured in Cubic Meter Per Ton of cargo.
What is Broken Stow?
The air gaps in the cargo. The larger the value the more air gaps between the cargo there is.
What is Deadweight Tonnage?
How much a ship can safely carry for it to sink to its summer load-line measured from its lightweight tonnage.
What is Ship Sweat? And how do you prevent it?
When cargo is loaded in a warm moist atmosphere, then the ship sails to a colder area causing the atmosphere inside the cargo hold to condense and water start pooling into the cargo.
Prevent it by ventilating the atmosphere inside the cargo hold with the cold air.
What is Cargo Sweat? And how do you prevent it?
When you load cargo in a cold dry atmosphere, then sailed to a warmer area. If you ventilate then the warm air condenses around the cold cargo, damaging it.
Prevent it by NOT ventilating.
What is the point of draught surveys?
To determine the exact amount of cargo loaded into a vessel.
