A.fuel oil
B.wood
C.celluloid
D.electrical insulation
您可能感興趣的試卷
你可能感興趣的試題
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
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
最新試題
Automatic fire dampers in ventilation systems are operated by use of（）.
According to the T-Boat regulations the reason for providing adequate ventilation for a battery storage area is to prevent（）.
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（）.
Each hand portable fire extinguisher must be marked with（）.
Automatic fire dampers in ventilation systems are operated by a（）.
Control of flooding should be addressed（）.
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
Each fireman’s outfit and its spare equipment on a vessel must be stowed（）.
Each fire pump on a ship must have a pressure gauge located at（）.