A.necessity
B.responsibility
C.requirement
D.stipulation
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A.to windward should be opened and the ones to leeward should be closed
B.to leeward should be opened and the ones to windward should be closed
C.should be opened
D.should be closed
A.squaring the corners
B.rounding the corners
C.plug welding the corners
D.slot welding the corners
A.cast iron
B.forged steel
C.stainless steel
D.cast steel
A.timber or steel rails
B.locomotives or boilers
C.railway passenger coaches
D.motor vehicles
A.reduces and prevents corrosion of standing rigging
B.prevents corrosion of running rigging
C.reduces and prevents wear caused by the rubbing of one object against another
D.protects the body against extreme cold
最新試題
The end of the joint with the exterior threads is called the（）.
The document on a vessel，annually endorsed by an American Bureau of Shipping surveyor，is called the（）.
Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.
In the ship construction portfolio，materials which do not conform to ASTM or ABS specifications must also include the（）.
Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.
Tensile stress is a result of two forces acting in（）.
Let’s submit the case（） the cargo surveyor.
Before welding in a tank that has carried petroleum products，the tank must be certified by （）.
I saw the cargo surveyor（）the cargo on deck just a minute ago．
At least one reinspection shall be made on each vessel holding a Certificate of Inspection valid for two years. This inspection shall be held between the tenth and fourteenth months of the duration period of the certificate and shall be（）.