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单选题
Each lifeboat must be lowered and maneuvered in the water at least once every（）.
A
2 months
B
3 months
C
4 months
D
5 months
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单选题Lifeboat hatchets should be（）.A
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At least one fire and drill shall be held within 24 hours of leaving a port where more than 25 percent of the crew has been replacedB
The Master is responsible in seeing thst each lifeboat is lowered to the water at least once in each 6 monthsC
Lifeboat equipment shall be examined at least once each month to insure that it is completeD
An entry shall be made in the vessels official Logbook relative eo each fire and boat drill
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单选题When launching a lifeboat in the rough sea, the davit gears should be released（）.A
before the boat is lowered from the stowed positionB
as the boat fall blocks break clear of the davit headC
before the boat is lowered from the embarkation levelD
after the boat is released into the water
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单选题When a survival craft drill is held，the person in charge must insure that（）.A
all survival craft are lowered to the water，launched，and operated for thirty minutesB
all davits used for launching liferafts are operatedC
each emergency position indicating radio beacon is tested for thirty minutesD
the helicopter pad landing lights are operating in a quick-flashing mode
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