A.steel
B.aluminum in an aluminum-hulled vessel
C.schedule 80 fire resistant plastic pipe
D.nickel-copper，copper-nickel or annealed copper
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A.used only for pollution response
B.owned and operated by the US government
C.used only within a barge fleeting area
D.used only on inland waters
A.receive a safety orientation or view a videotape before the vessel gets underway
B.view a videotape on safety procedures within 48 hours of reporting for duty
C.receive a safety orientation within 24 hours of reporting for duty
D.none of the above
A.Conduction of heat to adjacent surfaces
B.Direct radiation
C.Convection
D.All of the above
A.completely closing the compartment
B.closing the compartment except for the ventilators
C.leaving the compartment open to the air
D.increasing the air flow to the compartment by blowers
A.used for electrical fires only
B.the smallest
C.the most accessible
D.the most effective
最新試題
During storm conditions on a ship，the mooring tensions should be adjusted so that（）.
Each EPIRB required on a ship shall be stowed in a manner which will permit（）.
During which condition should the operator of a pedestal crane shutdown operations?（）
Fittings used for towing must be（）.
During the month of October the Sun’s declination is（）.
Each hand portable fire extinguisher on a ship must be marked with（）.
Fighting a rig fire in the ballast pumproom with hoses would adversely affect the stability of the rig most by（）.
During the course of a voyage，a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident，Injury or Death if the（）.
During the manufacture of line，yarns are twisted together in the（）.
Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT（）.