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  2. Porthole - Wikipedia

    en.wikipedia.org/wiki/Porthole

    On a ship, the function of a porthole, when open, is to permit light and fresh air to enter the dark and often damp below-deck quarters of the vessel. It also affords below-deck occupants a limited view to the outside world. [2] When closed, the porthole provides a strong water-tight, weather-tight and sometimes light-tight barrier.

  3. Compartment (ship) - Wikipedia

    en.wikipedia.org/wiki/Compartment_(ship)

    A closed weathertight door can seal out spray and periodic minor flow over weather decks, but may leak during immersion. These outward opening doors are useful at weather deck entrances to compartments above the main deck. [11] Joiner doors are similar to doors used in conventional buildings ashore. They afford privacy and temperature control ...

  4. Airlock - Wikipedia

    en.wikipedia.org/wiki/Airlock

    The procedure of entering an airlock from the external or ambient pressure environment, sealing it, equalizing the pressure, and passing through the inner door is known as locking in. Conversely, locking out involves equalizing pressure, unsealing the outer door, then exiting the lock compartment to enter the ambient environment.

  5. Hold (compartment) - Wikipedia

    en.wikipedia.org/wiki/Hold_(compartment)

    Most cargo hatches have a coaming, a raised edge around the hatch, to help keep out water. The term batten down the hatches is used prepare the ship for bad weather. This may included securing cargo hatch covers with wooden battens, to prevent water from entering from any angle. The term cargo hatch can also be a used for any deck opening ...

  6. Place of refuge for ships - Wikipedia

    en.wikipedia.org/wiki/Place_of_refuge_for_ships

    A place of refuge for ships is a safe harbor or other secure place where a ship in distress can safely be taken to "prevent further damage or deterioration of the ship". [ 1 ] It is often claimed that under international maritime law , "no port may be closed to a foreign ship seeking shelter from storm or bad weather or otherwise compelled to ...

  7. Bow visor - Wikipedia

    en.wikipedia.org/wiki/Bow_visor

    These doors are an upper extension of the collision bulkhead and act as a secondary barrier against water entering the car deck, should the primary bow door(s) fail. There have been several recorded incidents in which bow visors have partially opened whilst the ship is in motion, resulting in some ships having to have their visor locking ...

  8. Ship floodability - Wikipedia

    en.wikipedia.org/wiki/Ship_floodability

    Compartmentalisation of a ship, to reduce floodability Parts of a water-tight compartment. Floodability is the susceptibility of a ship's construction to flooding.It also refers to the ability to intentionally flood certain areas of the hull for damage control purposes, or to increase stability, which is particularly important in combat vessels, which often face the possibility of serious hull ...

  9. Why You Should Always Close the Interior Doors in Your Home ...

    www.aol.com/lifestyle/why-always-close-interior...

    Weather. 24/7 Help. ... Closing all interior doors helps disperse the pressure throughout your home, reducing the effect that all of that force can have on your roof — basically the one thing ...