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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On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.
During the required periodic abandon ship drill aboard a ship，each person not assigned duties in the muster list is（）.
Each fireman’s outfit and its spare equipment on a vessel must be stowed（）.
Control of flooding should be addressed（）.
Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.
Backfire flame arrestors are installed on（）.
Cargo transfer operations on a tanker need NOT be stopped when（）.
If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
Blocking open or removing fire dampers can cause（）.
A fire starting by spontaneous combustion can be expected in which condition?（）.