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
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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
A.the Coast Guard
B.the ABS
C.the shipyard fire department
D.a certified marine chemist
最新試題
The boom stops are installed on an offshore crane to（）.
The anchors on the bow are known as（）.
In which case is the IOPP Certificate of an inspected vessel NOT invalidated?（）
Hatch No.1 must be cleaned up to meet the（）of the cargo surveyors．
Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.
At the same time，it is（）for you to signify your acknowledgement of the responsibility for the collision by signing the copies of this letter hereto attached and to return me two copies in due time.
In the ship construction portfolio，materials which do not conform to ASTM or ABS specifications must also include the（）.
The angle at which the anchor flukes penetrate the soil is the（）.
Cracks may be prevented from developing at the corners of welded plating inserts by（）.
In order to withstand fluid head pressure on a ship，stiffeners are often attached to the bulkhead（）.