單項(xiàng)選擇題The original equilibrium position is stable when（）.

A.metacentric height is positive
B.metacentric radius is positive
C.KG exceeds maximum allowable limits
D.free surfaces are excessive


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1.單項(xiàng)選擇題The remote control for a fixed fire extinguishing system should be（）.

A.painted red and labeled
B.concealed from the crew
C.protected by plexiglass
D.padlocked

2.單項(xiàng)選擇題The sign used to caution persons approaching the gangway of a tank barge during cargo transfer reads（）.

A.warning, keep off,stay clear
B.danger, do not board
C.warning, no smoking, no open lights, no visitors
D.dangerous cargo being transferred

3.單項(xiàng)選擇題What is not accepted as the required shipping paperson a manned and loaded tank barge?（）.

A.Bill of lading
B.Manifest
C.Shipping document
D.Logbook entry

4.單項(xiàng)選擇題What will be accepted as the shipping papers for an unmanned tank barge but will not be accepted if the tank barge is manned?（）.

A.Bill of lading
B.Logbook entry
C.Manifest
D.Shippi g document

5.單項(xiàng)選擇題Which data is not painted on the bow of a lifeboat?（）.

A.Number of persons allowed
B.Name of the vessel
C.Weight of the boat
D.Home port