2007-01-07 08:10:22 · 9 answers · asked by Dazzy B 1 in Science & Mathematics ➔ Engineering
the volume of water it displaces weighs more than the tank so it floats.
have a read here http://en.wikipedia.org/wiki/Displacement_(fluid)
2007-01-07 08:11:36 · answer #1 · answered by Anonymous · 1⤊ 0⤋
A steel tanker is a water tight vessel. When ballast is added to the hold the vessel has a center of gravity lower than the waterline, preventing capsizing.
For a vessel to float it must be water tight, stable, and displace a volume of water greater than the gross weight of the vessel and cargo.
2007-01-07 08:24:22 · answer #2 · answered by Anonymous · 0⤊ 1⤋
The hull of the tanker decides the buoyancy.
2007-01-07 08:20:32 · answer #3 · answered by Rajan S 1 · 0⤊ 1⤋
the tanker is sealed so that the airspace pressure is greater than the pulldown pressure of gravity and it does not sink
2007-01-07 08:19:48 · answer #4 · answered by toadyboy 4 · 0⤊ 0⤋
In the same way a concrete yacht floats, it weighs less than the water it diplaces, no other fancy reason.
2007-01-07 08:56:09 · answer #5 · answered by Spanner 6 · 0⤊ 1⤋
It is water tight, and also has ballast tank filled with air, but can also be filled with water to maintain is trim in the water
2007-01-07 08:44:32 · answer #6 · answered by alec A 3 · 0⤊ 1⤋
Because if you want to carry yourself you get a boat. If you want to carry 20 people, you get a bigger boat, if you want to carry a ton engine, get a bigger boat, if you want to carry tons and tons of oil, get a ginormous boat. Simple. As long as your boat displaces more water than the weight of your boat and its cargo you're good to go.
2007-01-07 08:24:09 · answer #7 · answered by ukcufs 5 · 0⤊ 1⤋
they also have air tanks for buyancy control
2007-01-07 08:13:13 · answer #8 · answered by dan k 2 · 0⤊ 0⤋
water displacement,
2007-01-07 08:20:56 · answer #9 · answered by chris p 3 · 1⤊ 1⤋