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
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A.Safe working load
B.Ship's working lift
C.Starboard wing lift
D.Stress，weight，load
A.crow bar
B.device to force a water tight door against the frame
C.heavy steel beam
D.wedge
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
A.a defective ignition system
B.low lube oil level
C.weak valve springs
D.too heavy a load
A.once each crankshaft revolution
B.twice each crankshaft revolution
C.every other crankshaft revolution
D.every fourth stroke
最新試題
Anchors are prevented from running out when secured by the（）.
The bypass valve on a self-contained breathing device should be opened if（）.
If the engine of a survival craft does not start，check to see（）.
In the piping systems of a vessel，what type of valve gives the least resistance to fluid flow when fully open?（）.
An LWT anchor often has difficulty tripping in（）.
In nautical terminology a dog is a（）.
If a gasoline engine turns over freely but will not start，the cause is generally（）.
An integral part of a blowout preventer that serves as the closing element on an open hole，and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the（）.
Permission is kindly requested（）the ballast water.
In relation to cargo gear，what does SWL mean?（）.