單項(xiàng)選擇題The()should ensure that the holds in which chemical packages are stowed are properly supervised during the loading operations and these packages are regularly inspected for leakage or damage on the voyage.

A.berth operator
B.harbour supervisor
C.master of a ship
D.port authority


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1.單項(xiàng)選擇題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

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題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

5.單項(xiàng)選擇題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