A.damage from crane operations
B.being used for wash down purposes
C.accidental diversion of flow to wrong location
D.freezing
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A.vapor to oxygen
B.the flammable limit concentration
C.the autoignition concentration
D.the lower explosive limit concentration
A.fuel oil
B.wood
C.celluloid
D.electrical insulation
A.preventing oxygen from reaching the burning material
B.cooling the burning material below its ignition temperature
C.using the extinguishing agent to make the burning material fire-resistant
D.using the extinguishing agent to absorb the heat
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
A.pressure release
B.backfire flame arrestor
C.automatic shut off
D.flow valve
最新試題
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（）.
CO2 extinguishes a fire by（）.
A fire pump may be used for other purposes if（）.
A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.
A fire in electrical equipment should be extinguished by using（）.
If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
During a fire drill on a ship，what action is required?（）
Each fireman’s outfit and its spare equipment on a vessel must be stowed（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
A fire starting by spontaneous combustion can be expected in which condition?（）.