A.floors
B.intercostals
C.girders
D.stringers
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A.camel
B.dolphin
C.rat guard
D.wedge
A.bottom floor
B.outer bottom
C.shear plating
D.tank top
A.bar securing a cargo port
B.centerline vertical bulkhead
C.deep beam
D.spanner stay
A.increase the lifting capacity
B.increase the lifting radius
C.protect the slings
D.protect the upper part of a load
A.keeps sparks from falling into an open tank
B.secures covers on ullage openings
C.prevents sparks from getting out of an engine's exhaust system
D.grounds static electricity
最新試題
The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.
The most common type of davit found on merchant vessels today is the（）.
An example of a modern anchor which has a stock is a(n)（）.
In nautical terminology a dog is a（）.
Cargo pump relief valves are piped to the（）.
Limit switches are used on which davits?（）
In ship operations，hoisting and lowering pipe in and out of the drilled hole is the main function of the（）.
As the propeller turns，voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency，pitting of the blades，and vibration. These voids are known as（）.
The boat is stowed on the davit rather than on a cradle with which type of davit?（）
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.