单项选择题
Before hydraulic starting of an engine on a covered lifeboat，what need NOT be checked?（）
A.Fuel supply line valve
B.Pressure registered on the accumulator gauge
C.Cold-spark voltage readings test lamp
D.Engine stop control
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相关考题
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单项选择题
Aluminum lifeboats are subject to damage by electrolytic corrosion (the aluminum being eaten away). In working around boats of aluminum you must be very careful（）.
A.to keep the boats covered at all times
B.not to leave steel or iron tools lying in or near these boats
C.to keep an electric charge on the hull at all times
D.to rinse these boats regularly with salt water -
单项选择题
All inflatable liferafts have（）.
A.safety straps from the overhead
B.built in seats
C.releasing hooks at each end
D.water stabilizing pockets -
单项选择题
After conducting an abandonment drill，the Master or person in charge of a ship shall log（）.
A.the names of crew members who participated in the drill
B.the length of time that each motor propelled lifeboat was operated in the drill
C.the length of time the lifeboat was in the water
D.the time it took to lower the boat
