"Pressure in the Boat" is the proper term, and it is closely monitored while underway submerged. A drop in pressure indicates a leak somewhere onboard.
Once all hatches are closed and dogged, overall internal pressure is increased slightly to determine if there is a good seal on all hatches prior to diving. Air is bled into the pressure hull as necessary to do this, though the pressure isn't that much. The pressure is monitored constantly.
In emergency flooding cases, a compartment can be pressurized with compressed air to halt incoming water (or force it out).
Over time, pressure will increase as air is bled into the boat, and when surfacing and opening a hatch for the first time, crew must be extremely careful as the pressure is strong enough to eject a person out of the hatchway. All hatches have dog latches that prevent the hatch from being just being opened, and if there's too much pressure, it'll prevent the hatch from being blown open. However, it won't prevent someone from being blown into the hatch if they're not careful.
It did have a pressurised cabin originally.
Because the cabin inside the plane is pressurized?
Air craft cabin is fully pressurized.
yes, the cabin and cargo holds are pressurized.
There are air pumps in the outer jacket of the jet engines. Outside fresh air is taken in, compressed by pistons, and forced into ducts that send it into the cabin. The cabin is tightly sealed with carefully calculated exhaust. This allows the small air pump to keep the cabin pressurized. The cabin heaters are usually part of the pressurization system.
A submarine sinks as it fills its' ballast tanks with water. Then it uses pressurized air to empty them and float again.
If the pressure of the water is greater than the air pressure inside the cabin, the walls will crack, the doors will open, water will pour in and the submarine will sink to the bottom of the sea/lake, flooded. ("walls and "doors" are improper words, bear that in mind).
nope, the luggage compartment as well as the cabin are both pressurized.
There is no reason to believe that seat selection will impact the effect of cabin pressure on your ears. The planes cabin is pressurized the same through out the entire cabin.
During flight the cabin is pressurized with oxygen to match what it would be like on the ground.
the cabin could explode or crack
Pressure is created in the engines and/or APU as "bleed air" and enters the cabin.