A.vapor to oxygen
B.the flammable limit concentration
C.the autoignition concentration
D.the lower explosive limit concentration
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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
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
最新試題
Cargo transfer operations on a tanker need NOT be stopped when（）.
Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
Each fire pump on a ship must have a pressure gauge located at（）.
A fire must be ventilated（）.
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
A fire starting by spontaneous combustion can be expected in which condition?（）.
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
According to the T-Boat regulations the reason for providing adequate ventilation for a battery storage area is to prevent（）.