单项选择题
A.greater at the bow and stern B.reduced at the bow and stern C.uniform over the length of the vessel D.uniform over the length of the vessel，with the exception of the machinery spaces，where it is reduced due to increased stresses
In relation to cargo gear，what does SWL mean?（）.A.Safe ...
单项选择题In relation to cargo gear，what does SWL mean?（）.
A.Safe working load B.Ship's working lift C.Starboard wing lift D.Stress，weight，load
In nautical terminology a dog is a（）.A.crow barB.device...
单项选择题In nautical terminology a dog is a（）.
A.crow bar B.device to force a water tight door against the frame C.heavy steel beam D.wedge
If the engine of a survival craft does not start，check ...
单项选择题If the engine of a survival craft does not start，check to see（）.
A.that the fuel valve is open B.if the air supply system is open C.if the water sprinkler system is open D.if the limit switch is on
