A.opposite directions on the same line，tending to pull the material apart
B.opposite directions on the same line，tending to compress the object
C.opposite directions along parallel lines
D.the same direction along parallel lines
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A.Tearing through the member is more likely in this type connection
B.The weld may be broken by the stresses caused by riveting
C.The weld increases the tensile stress on the rivet heads
D.The welding must be completed before the riveting commences
A.shall
B.should
C.may
D.would
A.a marine chemist
B.the Officer in Charge，Marine Inspection
C.the Master or person in charge of the ship
D.the National Fire Protection Association
A.to be carried out
B.carry out
C.be carried out
D.will carry out
A.of
B.for
C.with
D.in
最新試題
The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are（）.
Before welding in a tank that has carried petroleum products，the tank must be certified by （）.
The angle between the flukes and the shank of an anchor is called the（）.
During fueling，all doors，hatches，and ports（）.
Prior to burning or welding on a fuel tank on a ship，regulations require that an inspection be made. An entry in the unofficial logbook is required if this inspection is made by（）.
Hatch No.1 must be cleaned up to meet the（）of the cargo surveyors．
The smallest size of flaw that can be detected on a radiograph examination of a weld will be indicated by the（）.
Tensile stress is a result of two forces acting in（）.
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（）.
Connecting elements of a mooring system should be fabricated from（）.