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
I saw the cargo surveyor（）the cargo on deck just a minute ago．
During fueling，all doors，hatches，and ports（）.
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.
Please arrange（）a surveyor to inspect the damaged bulkhead．
At（）an occasional survey has been carried out．
The anchors on the bow are known as（）.
Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.
Cracks may be prevented from developing at the corners of welded plating inserts by（）.
Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure? （）
Please arrange the survey（）early．