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
相关考题
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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 -
单项选择题
In securing deck loads for an ocean tow，drill pipe should be（）.
A.galvanized to protect against corrosion
B.held in place with heavy materials such as spare pendant wire
C.limited to no more than five courses high
D.provided with bulwarks at both ends of their bays -
单项选择题
In preparing a cargo space for receipt of a shipment of bagged cargo，which instruction for laying dunnage should be followed? （）
A.Use either 1 or 2 tiers of dunnage，spacing the pieces in each tier a foot apart，and lay pieces in the bottom tier diagonally to the ship's side
B.Use 1 tier of dunnage，laying the pieces tightly together to form a solid floor over the steel deck
C.Use 2 tiers of dunnage，spacing the pieces in the bottom tier about a foot apart and the pieces in the top tier 6 inches apart
D.Use 2 tiers of dunnage，spacing the pieces in the bottom tier about a foot apart and the pieces in the top tier together
