A.damage from crane operations
B.being used for wash down purposes
C.accidental diversion of flow to wrong location
D.freezing
您可能感興趣的試卷
你可能感興趣的試題
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
A fire starting by spontaneous combustion can be expected in which condition?（）.
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（）.
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
Backfire flame arrestors are installed on（）.
Controls for a fixed carbon dioxide system shall be mounted（）.
CO2 extinguishes a fire by（）.
Each hand portable fire extinguisher must be marked with（）.
Each fireman’s outfit and its spare equipment on a vessel must be stowed（）.
During a fire drill on a ship，what action is required?（）
A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.