There are 2 primary reasons:
1. Pressure in the boat helps to seal hull valves and other mechanical equipment that rely on seals to keep water out of the boat.
2. Monitoring the air pressure in the boat is a primary way to discover leaks or flooding; if there is a drop in pressure for no apparent reason, it's a good bet that water is coming in from somewhere.
pressure..!
1. Ballistic submarines 2. Attack submarines
Why shouldn't technician use oxygen or compressed air to pressurize appliances to check for lea
Boats, Subs, Submarines, Home.
Submarines - poem - was created in 1917.
Dallas Submarines was created in 1920.
One of our Submarines was created in 1982.
Yes, North Korea has submarines
yes
Yes, it can.
Argentina had diesel-electric submarines while the British had nuclear-powered submarines.
USA has the most nuclear submarines