单项选择题

Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed（）.

A.preload
B.liquid variable load
C.fixed load
D.basic load

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单项选择题

Prior to backloading portable tanks or drums onto an offshore supply vessel，check that each tank is（）.

A.painted yellow with diagonal black striping
B.capped and checked for leaks
C.coated with non-corrosive protection
D.mounted on pallets

单项选择题

Large quantities of uncovered pig iron or billets should not be carried in the upper-tween decks because（）.

A.this does not eliminate the risk of cargo shifting
B.this will increase the metacentric height of the ship
C.this will decrease the gravity height of the ship
D.this will reduce the rolling period of the ship

单项选择题

It’s（）to stow optional cargo in the lower hold．You’d better give it block stowage in the tweendecks，then it can be easily discharged either at Shanghai，or Dalian or Tianjin.

A.possible
B.impossible
C.proper
D.improper