单项选择题
A.oil from flowing out of the tank vent B.air from entering the tank vent C.vapors from leaving the tank vent D.flames on deck from entering the tank vent
Freeboard is measured from the upper edge of the（）.A.bu...
单项选择题Freeboard is measured from the upper edge of the（）.
A.bulkwark B.deck line C.gunwale bar D.sheer strake
Forecastle deck is located in the ship’s（）.A.bow stemB....
单项选择题Forecastle deck is located in the ship’s（）.
A.bow stem B.stern C.portside D.starboard side
Electric cargo winches have an overload safety device w...
单项选择题Electric cargo winches have an overload safety device which normally cuts the current to the winch motor（）.
A.after torque causes line pull to exceed the rated capacity of the winch B.before the line pull reaches the rated capacity of the winch C.when the line pull reaches the breaking strength of the fall D.before the safe working load of the fall is reached
