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
Convection spreads a fire by（）.
Control of fire on a ship should be addressed（）.
Each hand portable fire extinguisher must be marked with（）.
Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.
Controls for a fixed carbon dioxide system shall be mounted（）.
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（）.
Before a tank is to be crude oil washed，the oxygen content in the tank must be measured at a position（）.
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
During a fire drill on a ship，what action is required?（）