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
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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
According to the T-Boat regulations the reason for providing adequate ventilation for a battery storage area is to prevent（）.
During a fire drill on a ship，what action is required?（）
If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
A fire in electrical equipment should be extinguished by using（）.
Blocking open or removing fire dampers can cause（）.
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
Control of fire on a ship should be addressed（）.
Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.