obviously to carry oil from one one place to another of importance
A ship with a cargo rides lower in the water than when it has no cargo. As the cargo is unloaded, the ship rises in the water, revealing parts of the hull which had been below the water level. What the observer was looking at was a ship which was in the process of delivering its oil to the terminal.
If you consider the "most cargo" to be by weight or volume then the answer would be a Supertanker. VLCC stands for Very Large Crude Carriers. These tankers can carry up to 400,000 tons of crude oil and are over 1,000ft in length.
They are all called cargo ships. If they carry a special kind of cargo, then they are sub-categorized into Oil: VLCC = Very Large Crude Carrier ULCC = Ultra Large Crude Carrier Transporters/Ferries: RO-RO = Roll On, Roll Off Other categories: Bulk Carriers Container ships Oil Tankers Gas Tankers Car Carrier
It is a kind of a combined carrier, which carries all kind of cargo's.
There are several control rooms on a cargo ship. The bridge is in control of safely navigating the vessel. There will be an engine control room, called an ECR, EOS, or any of a number of abbreviation, and if the vessel is carrying liquid cargo, such as a oil tanker, there will also be a Cargo Control Room.
Many ships use MDO or Marine Diesel Oil, sometimes also known as #2 Diesel. Ships can also use HFO or Heavy Fuel Oil or Bunker C. These are crude oil derivatives that are largely unrefined. They are very thick and need to be heated by steam in order to reduce its viscosity to allow them to flow.
A tank in a tanker into which slops are pumped. These represent a residue of the ship's cargo of oil together with the water used to clean the cargo tanks. They are left to separate out in the slop tank.
A ship constructed or adapted primarily to carry oil in bulk in its cargo spaces and includes combination carriers and any chemical tanker. --Jayant Negi
oil tanks are cargo hold in oil tanker.OBO ships ( oil bulk ore) having oil tanks which is similar to cargo hold in bulk carrier
Unless you own a cargo ship and run it on crude oil - some operators do - it has to be separated into fractions before it's usable.
You would ship oil by ship if you had to get it across the ocean. Pipelines have been considered but a pipeline that is large and long enough to transport oil from the middle east to America for example, would cost a ton of money (several billion dollars). Therefore, they load it onto tanker vessels and ship it across the ocean.
It depends on the type of engines that the ship has, but most large cargo and container ships use heavy fuel oil called bunker fuel. In some cruise ships, they burn bunker fuel to spin electric generators that produce electricity for motors. Smaller vessels use various types of Diesel.