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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If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
Before using a fixed CO2 system to fight an engine room fire，you must（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
Each fireman’s outfit and its spare equipment on a vessel must be stowed（）.
Blocking open or removing fire dampers can cause（）.
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
Before a tank is to be crude oil washed，the oxygen content in the tank must be measured at a position（）.
Each hand portable fire extinguisher must be marked with（）.
A fire must be ventilated（）.
During the required periodic abandon ship drill aboard a ship，each person not assigned duties in the muster list is（）.