A.the mimimum fire extinguishing equipment，lifejackets，survival and rescue craft she must carry
B.the name of the managing operator
C.any special conditions or restrictions on her operation
D.All the above
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A.pressure release
B.backfire flame arrestor
C.automatic shut off
D.flow valve
A.at least annually
B.whenever it is below its required weight
C.only if the extinguisher has been used
D.before every safety inspection
A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished
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Each hand portable fire extinguisher must be marked with（）.
Before using a fixed CO2 system to fight an engine room fire，you must（）.
A fire pump may be used for other purposes if（）.
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
Each fire pump on a ship must have a pressure gauge located at（）.
Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
Dry chemical fire extinguishers are effective on which type(s) of fire?（）
Before a tank is to be crude oil washed，the oxygen content in the tank must be measured at a position（）.
According to the T-Boat regulations the reason for providing adequate ventilation for a battery storage area is to prevent（）.
During a training exercise a submarine indicating that a torpedo has been fired will send up smoke from a float. The smoke’s color will be（）.